Aaron Belnap Ross photograph collection, 1957-1972

Cataloger Note: This folder was originally dated at 1957, but according to the local newspapers, the first Friendship Cruise was in 1958, not '57. It was a warm-up for boaters to familiarize themselves with the river prior to a "marathon" race to be held a few weeks later by the Canyon Country Marathon Association.

The Moab Times-Independent, issue of June 12, 1958, covered the first two-river marathon, and makes reference to preliminary runs, including one on May 10 and 11, with 105 boats. This may have been the first "Friendship Cruise," though not so named until the following year. But there were more early runs: "Since that week-end, a number of boats have made the run each week-end, over thirty running the two rivers on the long Memorial Day week-end."

A single slide, P0789n1_01_46, is dated from May 29-31. Since this was before Monday became the official holiday, the span of three days was probably Friday to Sunday, and in 1958, Memorial Day was officially on Friday, May 29. So if the notation is correct, the most likely year for this set was 1958, rather than 1957. That erroneous year was probably added years after the fact. Meanwhile, research in the Aaron Ross papers (ACCN 1714) discloses the following: In June of 1957, Aaron B. Ross and his family took a raft down from Green River, but met with a mishap in Desolation Canyon. After this, Ross bought a motorboat. So his participation in the first Friendship Cruise (which was a motorboat event), on Memorial Day weekend in 1958 makes sense.

• 1: Green River to Moab, Decoration Day [Memorial Day], 1958. Green River.
• 2-26: Friendship Cruise, 1958 Green River
• 27: Friendship Cruise, 1958 Colorado River
• 28-34: Friendship Cruise, 1958 Green River
• 35: Green River to Moab – Decoration Day [Memorial Day], 1958. Green River.
• 36-45: Friendship Cruise, 1958 Green River
• 46: Friendship Cruise, Green River May 29 – 31, 1958.
• 47-53: Friendship Cruise, 1958 Green River
• 54-64: Friendship Cruise 1958 Colorado River
• 65-70: Dead Horse, Colorado River

• 1 -5 :Colorado River below Moab during the Aaron Belnap Ross river trip in the spring of 1961.
• 6: Two motorboats boats in Cataract Canyon on the Colorado River below Moab during the Aaron Belnap Ross river trip in the spring of 1961. The motorboats are possibly Don Harris' DONZ and Jack Brennan's JAX.
• 7-20 :Colorado River below Moab during the Aaron Belnap Ross river trip in the spring of 1961.
• 21: A blooming flowers (genus Phacelia?), in Glen Canyon region, during a Aaron Belnap Ross river trip in May of 1961.
• 22: A flower blooming along the Colorado River below Moab during the Aaron Belnap Ross river trip in May of 1961.
• 23-24: Colorado River below Moab during the Aaron Belnap Ross river trip in the spring of 1961.
• 25: Rock erosion along the Colorado River below Moab during the Aaron Belnap Ross river trip in the spring of 1961.
• 26: Colorado River below Moab during the Aaron Belnap Ross river trip in the spring of 1961.
• 27: Sandstone towers over the Colorado River below Moab during the Aaron Belnap Ross river trip in the spring of 1961.
• 28: Flowers (sunflower family) blooming in Cataract Canyon during the Aaron Belnap Ross river trip in May of 1961.
• 29-30: Colorado River below Moab during the Aaron Belnap Ross river trip in the spring of 1961.
• 31: Rock formations along the Colorado River below Moab during the Aaron Belnap Ross river trip in the spring of 1961.
• 32- 33: Colorado River below Moab during the Aaron Belnap Ross river trip in the spring of 1961.
• 34: Colorado River's Cataract Canyon during the Aaron Belnap Ross river trip in the spring of 1961.
• 35-37: Colorado River below Moab during the Aaron Belnap Ross river trip in the spring of 1961.
• 38: A flowering cactus seen in the Colorado River's Cataract Canyon during a Aaron Belnap Ross river trip in May of 1961.

• 1: Lees Ferry
• 2: Marble Canyon high above Navajo Bridge
• 3: Navajo Bridge
• 4: Glen Canyon bridge
• 5: Marble Canyon High
• 6-7: Marble Canyon
• 8-9: Marble Canyon Agave utahensis
• 10: North [Canyon?]
• 11: Marble Canyon
• 12: Marble Canyon High
• 13-14: Marble Canyon
• 15: Marble Canyon High
• 16: Marble Canyon Vasey's Paradise
• 17: Marble Canyon Above Vasey's Paradise
• 18: Marble Canyon ruin near Vasey's Paradise
• 19: Marble Canyon Vasey's Paradise
• 20-22: Marble Canyon Redwall Cavern
• 23: Marble Canyon Redwall Cavern looking down
• 24-27: Marble Canyon [Bert Loper's boat near Buck Farm Canyon]
• 28: Marble Canyon Cat's claw [plant]
• 29: Marble Canyon Explorer's grave [grave of Boy Scout, died 1958, at President Harding Rapid camp]
• 30-32: Marble Canyon Little Colorado River
• 33-35: [unidentified people]
• 36-37: Cacti
• 38: [above Hance Rapid]
• 39-40: Hance Rapid
• 41-42: Sockdologer Rapid
• 43: [boats tied to shore]
• 44-48: Phantom Ranch
• 49-56: Elves Chasm
• 57: Lava Falls
• 58-68: Lower Grand Canyon
• 69-70: Lake Mead
• 71: Marble Canyon Agave utahensis

• 1: [Plaques under Navajo Bridge]
• 2: [Navajo Bridge]
• 3: River
• 4: Boats
• 5: Unidentified Person
• 6: [Vasey's Paradise]
• 7-9: Flowers
• 10: Landscape
• 11: Boats
• 12: Landscape (sand)
• 13-15: [Redwall Cavern]
• 16-18: On the river
• 19: [Bert Loper's boat near Buckfarm Canyon]
• 20-53: On the river
• 54-61: [Georgie White's boat and party]
• 62-64: On the river

• 01: car next to river
• 02-04: boats
• 05-12: river
• 13: drying river
• 14-15: plants
• 16: unidentified persons
• 17: docked boats
• 18-23: river
• 24-025: landscape
• 26-036: river
• 37: landscape
• 38: flowers
• 39: writing on rock
• 40: plants
• 41-42: river
• 43: plants
• 44: river
• 45-46: boats
• 47-51: unidentified persons
• 52: flowers
• 53-054: river between mountains
• 55: Mountains
• 56: flowers
• 57: river
• 58: people
• 59: river
• 60: dock
• 61: river
• 62: rock formation
• 63: river
• 64: view from river
• 65: unidentified persons swimming
• 66: tiny frog
• 67: flowers
• 68: rock formations
• 69: flowers
• 70: river
• 71: Giant rock
• 72-73: flowers
• 74: hikers
• 75-76: rock formations
• 77: boating
• 78: nature scenery
• 79: landscape

• 1 : Photo of Mrs. O'Dell, a passenger on the Aaron Belnap Ross Colorado River trip in the spring of 1963.
• 2 : Photo of a passenger on the Aaron Belnap Ross Colorado River trip in April of 1963.
• 3 : Photo of a scene in Big Hole at Mile 206 3/4 above Lees Ferry along the Colorado River, during the Aaron Belnap Ross river trip in the spring of 1963.
• 4 : Photo of a scene in Big Hole at Mile 206 3/4 above Lees Ferry along the Colorado River, during the Aaron Belnap Ross river trip in the spring of 1963.
• 5 : Photo of river guide Jack Brennan at Big Hole at Mile 206 3/4 above Lees Ferry along the Colorado River, during the Aaron Belnap Ross river trip in the spring of 1963.
• 6 : Photo of a scene along the Colorado River in Cataract Canyon, with Albert Fulton, a passengeron the Aaron Belnap Ross river trip in April of 1963.
• 7 : Photo of Harold Hand guiding a boat on the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.
• 8 : Photo of Big Drop Rapid in the Colorado River's Cataract Canyon, during the Aaron Belnap Ross river trip in April of 1963.
• 9 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through Cataract Canyon in April of 1963.
• 10 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.
• 11 : Photo of a scene along the Colorado River in Cataract Canyon during the Aaron Belnap Ross river trip in the spring of 1963.
• 12 : Photo of cliffs above the Colorado River in the Glen Canyon region, during a river trip in April of 1963.
• 13 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.
• 14 : Photo of a scene in upper Clearwater Canyon, seen during a hike up from the Colorado River's Cataract Canyon during a Aaron Belnap Ross river trip in April of 1963.
• 15 : Photo of a scene in upper Clearwater Canyon, seen during a hike up from the Colorado River's Cataract Canyon during a Aaron Belnap Ross river trip in April of 1963.
• 16 : Photo of Jack Brennan in a motorboat running Dark Canyon Rapid in the Colorado River's Cataract Canyon during a Aaron Belnap Ross river trip in April of 1963.
• 17 : Photo of Jack Brennan running Dark Canyon Rapid in Cataract Canyon along the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.
• 18 : Photo of Jack Brennan running Dark Canyon Rapid in Cataract Canyon along the Colorado River during the Aaron Belnap Ross river trip in April of 1963.
• 19 : Photo of Dark Canyon Rapid in the Colorado River's Cataract Canyon during a Aaron Belnap Ross river trip in April of 1963.
• 20 : Photo of Dark Canyon Rapid in the Colorado River's Cataract Canyon during a Aaron Belnap Ross river trip in April of 1963.
• 21 : Photo of Dark Canyon Rapid in the Colorado River's Cataract Canyon, during the Aaron Belnap Ross river trip in the spring of 1963.
• 22 : Photo of cliffs above the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in the spring of 1963.
• 23 : Photo of sandstone cliffs above the Colorado River below Moab during the Aaron Belnap Ross river trip from Cataract Canyon to Glen Canyon in the spring of 1963.
• 24 : Photo of a young boy in Glen Canyon during the Aaron Belnap Ross river trip in April of 1963.
• 25 : Photo of members of Aaron B. Ross party scaling a rock wall at Rainbow Bridge National Monument, during a river trip in April of 1963.
• 26 : Photo of members of Aaron B. Ross party scaling a rock wall at Rainbow Bridge National Monument, during a river trip in April of 1963.
• 27 : Photo of people climbing on sandstone domes in Glen Canyon, during one of Aaron Belnap Ross's Colorado River trips in the spring of 1963.
• 28 : Photo of members of Aaron B. Ross party scaling a rock wall at Rainbow Bridge National Monument, during a river trip in April of 1963
• 29 : Photo of members of Aaron B. Ross party scaling a rock wall at Rainbow Bridge National Monument, during a river trip in April of 1963.
• 30 : Photo of the view just upstream from Rainbow Bridge, visited during one of Aaron Belnap Ross's river trips in April of 1963.
• 31 : Photo of members of Aaron B. Ross party scaling a rock wall at Rainbow Bridge National Monument, during a river trip in April of 1963
• 32 : Photo of sandstone cliffs along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in the spring of 1963.
• 33 : Photo of a camping scene near the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.
• 34 : Photo of members of Aaron B. Ross party scaling a rock wall at Rainbow Bridge National Monument, during a river trip in April of 1963.
• 35 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in April of 1963.
• 36 : Photo of passengers on Aaron Belnap Ross's Colorado River trip in April of 1963.
• 37 : Photo of a passenger on the Aaron Belnap Ross Colorado River trip in the spring of 1963.
• 38 : Photo of a side canyon of Glen Canyon, seen during a Aaron Belnap Ross Colorado River trip in the spring of 1963.
• 39 : Photo of members of Aaron B. Ross party scaling a rock wall at Rainbow Bridge National Monument, during a river trip in April of 1963.
• 40 : Photo of a scene along the Colorado River in upper Glen Canyon, during the Aaron Belnap Ross river trip in the spring of 1963.
• 41 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in the spring of 1963.
• 42 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in April of 1963.
• 43 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.
• 44 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in the spring of 1963.
• 45 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in the spring of 1963.
• 46 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in April of 1963.
• 47 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.
• 48 : Photo of a scene along the Colorado River during a Aaron Belnap Ross river trip in the spring of 1963.
• 49 : Photo of members of Aaron B. Ross party viewing a side canyon, during a river trip in April of 1963.
• 50 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in April of 1963.
• 51 : Photo of two men sitting and talking, during the Aaron Belnap Ross river trip in the spring of 1964.
• 52 : Photo of a man during the Aaron Belnap Ross river trip on the Colorado River in Glen Canyon, in the spring of 1963.
• 53 : Photo of passengers on a hike in Glen Canyon country, during an Aaron Belnap Ross Colorado River trip in April of 1963.
• 54 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in April of 1963.
• 55 : Photo of people walking by the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.
• 56 : Photo of a scene at Hole in the Rock near the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.
• 57 : Photo of a scene at Hole in the Rock during a hike from the Colorado River, during the Aaron Belnap Ross river trip in the spring of 1963.
• 58 : Photo of a scene at Hole in the Rock during a hike from the Colorado River, during the Aaron Belnap Ross river trip in the spring of 1963.
• 59 : Photo of a scene at Hole in the Rock during a hike from the Colorado River, during the Aaron Belnap Ross river trip in the spring of 1963.
• 60 : Photo of a scene at Hole in the Rock during a hike from the Colorado River, during the Aaron Belnap Ross river trip in the spring of 1963.
• 61 : Photo of flowers (probably Penstemon eatonii) seen along the Colorado River in Glen Canyon area, during the Aaron Belnap Ross river trip in April of 1963.
• 62 : Photo of a western redbud (Cercis occidentalis) in bloom, seen near the Colorado River in central Utah during the Aaron Belnap Ross river trip in April of 1963.
• 63 : Photo of a view of a side canyon and stream during a hike from the Colorado River, during the Aaron Belnap Ross river trip in April of 1963.
• 64 : Photo of a scene in Glen Canyon during the Aaron Belnap Ross Colorado River river trip in April of 1963.
• 65 : Photo of a passenger in Glen Canyon during the Aaron Belnap Ross river trip in April of 1963.
• 66 : Photo of men rock-climbing near the Colorado River, probably at Rainbow Bridge, during the Aaron Belnap Ross river trip in the spring of 1963.
• 67 : Photo of sandstone cliffs of Glen Canyon along the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.
• 68 : Photo of people climbing on sandstone domes in Glen Canyon, during one of Aaron Belnap Ross's Colorado River trips in the spring of 1963.
• 69 : Photo of a view from Rainbow Bridge up Bridge Canyon toward Navajo Mountain, during Aaron B. Ross's Glen Canyon trip of April 1963
• 70 : Photo of a man viewing the scenery along the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.

• 1 : Photo of a scene in Cataract Canyon at Mile 189 1/2 above Lees Ferry along the Colorado River, during the Aaron Belnap Ross river trip in June of 1963.
• 2 : Photo of a scene in Cataract Canyon at Mile 189 1/2 above Lees Ferry along the Colorado River, during the Aaron Belnap Ross river trip in June of 1963.
• 3 : Photo of Dark Canyon Rapid in the Colorado River's Cataract Canyon during a Aaron Belnap Ross river trip in June of 1963.
• 4 : Photo of Dark Canyon Rapid in the Colorado River's Cataract Canyon during a Aaron Belnap Ross river trip in June of 1963.
• 5 : Photo of Don Harris running Dark Canyon Rapid in Cataract Canyon along the Colorado River during the Aaron Belnap Ross river trip in June of 1963.
• 6 : Photo of Dark Canyon Spring in the Colorado River's Cataract Canyon, visited during a Aaron Belnap Ross river trip in June of 1963.
• 7 : Photo of a passenger during a Aaron Belnap Ross river trip through the Colorado River's Cataract Canyon in June of 1963.
• 8 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip in June of 1963.
• 9 : Photo of passengers on during a Aaron Belnap Ross river down the Colorado River through Cataract Canyon trip in June of 1963.
• 10 : Photo of a scene in upper Clearwater Canyon, seen during a hike up from the Colorado River's Cataract Canyon during a Aaron Belnap Ross river trip in June of 1963.
• 11 : Photo of a scene along the Colorado River, in Narrow Canyon just below Cataract Canyon, during the Aaron Belnap Ross river trip in the spring of 1963.
• 12 : Photo of passengers at Hite on the Colorado River, during a Aaron Belnap Ross river trip in June of 1963.
• 13 : Photo of the White Canyon Post Office at mouth of Farley Canyon just downstream on the Colorado from Hite, Utah, seen during Aaron Belnap Ross's Glen Canyon river trip in June of 1963.
• 14 : Photo of passengers and boaters in a pickup truck, being transported to Colorado River launching point for an Aaron Belnap Ross river trip in June of 1963.
• 15 : Photo of a scene in the Colorado River's upper Glen Canyon during a Aaron Belnap Ross river trip in June of 1963.
• 16 : Photo of Lost Eden Canyon, a side grotto of Glen Canyon during a Aaron Belnap Ross  the Colorado River river trip in June of 1963.
• 17 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in June of 1963.
• 18 : Photo of a campsite at night near the Colorado River, during the Aaron Belnap Ross river trip in June of 1963.
• 19 : Photo taken on the hike from the Colorado River to Rainbow Bridge, during Aaron B. Ross's Glen Canyon river trip in June of 1963
• 20 : Photo of a view of Rainbow Bridge during a hike from the Colorado River, during the Aaron Belnap Ross river trip in June of 1963.
• 21 : Photo of a view of Rainbow Bridge during a hike from Colorado River, during the Aaron Belnap Ross river trip in June of 1963.
• 22 : Photo of a view of Rainbow Bridge during a hike from the Colorado River, during the Aaron Belnap Ross river trip in June of 1963.
• 23 : Photo of a view of Rainbow Bridge during a hike from the Colorado River, during the Aaron Belnap Ross river trip in June of 1963.
• 24 : Photo of a view of Rainbow Bridge during a hike from the Colorado River, during the Aaron Belnap Ross river trip in June of 1963.
• 25 : Photo of a view of Rainbow Bridge during a hike from Colorado River, during the Aaron Belnap Ross river trip in June of 1963.
• 26 : Photo of a view of Rainbow Bridge during a hike from the Colorado River, during the Aaron Belnap Ross river trip in June of 1963.
• 27 : Photo of rock climbing at Rainbow Bridge during a hike from the Colorado River, during the Aaron Belnap Ross river trip in June of 1963.
• 28 : Photo of a lunch stop along the Colorado River during the Aaron Belnap Ross river trip in the spring of 1963.

• 1 : Photo of crew in a boat on the Green River near Ouray, Utah, Desolation Canyon trip of May 1964.
• 2 : Photo of Dr. Ross's boat on the Green River towing Jack Brennan's cataract boat with Larry Ross and Dick Legas, Aaron Belnap Ross Desolation Canyon trip of May 1964
• 3 : Photo of Jack Brennan's boats on the Green River, Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 4 : Photo of Dr. Ross and Jack Brennan's boats on the Green River, Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 5 : Photo of Dr. Ross's boat on the Green River, Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 6 : Photo of Dr. Ross and Jack Brennan's boats on the Green River, Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 7 : Photo of Dr. Ross's boat on the Green River towing Jack Brennan's cataract boat with Larry Ross and Dick Legas, Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 8 : Photo of Dr. Ross's boat on the Green River, Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 9 : Photo of Dr. Ross in his boat on the Green River, Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 10 : Photo of Jack Brennan's boat with Larry Ross and Dick Legas in Boy Scout rapid on the Green River, Aaron Belnap Ross Desolation Canyon trip of May 1964
• 11 : Photo of two boats on the Green River, Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 12 : Photo of Jack Brennan's boat with Larry Ross and Dick Legas in Boy Scout rapid on the Green River, Aaron Belnap Ross Desolation Canyon trip of May 1964
• 13 : Photo of two boats on the Green River, Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 14 : Photo of two boats on the Green River, Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 15 : Dr. Aaron Ross in his boat on the Green River, Desolation Canyon trip of May 1964.
• 16 : Dick Legas and Larry Ross prepare boat on the Green River in Gray Canyon, Desolation Canyon trip of May 1964.
• 17 : Dick Legas and Larry Ross prepare boat on the Green River in Gray Canyon, Desolation Canyon trip of May 1964.
• 18 : Dr. Aaron Ross in his boat on the Green River, Desolation Canyon trip of May 1964
• 19 : Photo of Larry Ross and Dick Legas on the Green River, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 20 : Photo of Larry Ross and Dick Legas on the Green River, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 21 : Dr. Aaron Ross, Dan Alsup, and Bill Roylance in a boat on the Green River, Desolation Canyon trip of May 1964.
• 22 : Photo of boats on the Green River, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 23 : Photo of Dan Alsup in Dr. Ross's boat towing Larry Ross and Dick Legas on the Green River, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 24 : Photo of two boats on the Green River, Desolation Canyon trip of May 1964.
• 25 : Photo of Dan Alsup in Dr. Ross's boat towing Larry Ross and Dick Legas on the Green River, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 26 : Photo of Don Harris, Bill Roylance, Dr. Aaron Ross, Larry Ross, and Dan Alsup on shore of the Green River, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 27 : Don Harris, Bill Roylance, and Dan Alsup on shore of the Green River, Desolation Canyon trip of May 1964.
• 28 : Photo of Larry Ross and Dick Legas on the Green River, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 29 : Photo of Larry Ross and Dick Legas on the Green River, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 30 : Jack Brennan's boat in the rapids on the Green River in Gray Canyon, Desolation Canyon trip of May 1964.
• 31 : Jack Brennan's boat in the rapids on the Green River in Gray Canyon, Desolation Canyon trip of May 1964.
• 32 : Photo of Jack Brennan's boat on the Green River in Gray Canyon, Desolation Canyon trip of May 1964
• 33 : Dr. Aaron Ross and Dan Alsup on shore at Coal Creek Rapid, Gray Canyon section of the Green River, Desolation Canyon trip of May 1964.
• 34 : Dr. Aaron Ross and Dan Alsup on shore at Coal Creek Rapid, Gray Canyon section of the Green River, Desolation Canyon trip of May 1964.
• 35 : Photo of Larry Ross, and Dick Legas in Coal Creek rapid in Gray Canyon on the Green River, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 36 : Photo of Larry Ross and Dick Legas running Coal Creek rapid in Gray Canyon on the Green River, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 37 : Photo of Larry Ross and Dick Legas in Coal Creek rapid in Gray Canyon on the Green River, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.
• 38 : Photo of Green River at the end of Gray Canyon, Dr. Aaron Belnap Ross Desolation Canyon trip of May 1964.

• 1 : Photo of boaters along the Colorado River (probably in Glen Canyon) during the Aaron Belnap Ross river trip in the spring of 1964.
• 2 : Photo shows men filling a motor boat tank with gas at a dock along the Colorado River, during one of Aaron Belnap Ross's river trips in May of 1964.
• 3 : Photo of a group of men with boat before or after a river trip with Aaron Belnap Ross in May of 1964.
• 4 : Photo of boaters along the Colorado River (probably in Glen Canyon) during the Aaron Belnap Ross river trip in May of 1964
• 5 : Photo of a man fixing a propeller on his boat by the Colorado River during the Aaron Belnap Ross river trip in Glen Canyon in May of 1964.
• 6 : Photo of a 1909 inscription at Rainbow Bridge, Utah, visited by Aaron B. Ross in May of 1964
• 7 : Photo of a sign at Rainbow Bridge, Utah, visited by Aaron B. Ross in May of 1964
• 8 : Photo of a 1909 inscription at Rainbow Bridge, Utah, visited by Aaron B. Ross in May of 1964
• 9 : Photo of Rainbow Bridge, Utah, visited by Aaron B. Ross in May of 1964
• 10 : Photo of Rainbow Bridge, Utah, visited by Aaron B. Ross in May of 1964
• 11 : Photo of a view at Rainbow Bridge National Monument, Utah, visited by Aaron B. Ross in May of 1964
• 12 : Photo of Rainbow Bridge, Utah, visited by Aaron B. Ross in May of 1964
• 13 : Photo of Rainbow Bridge, Utah, visited by Aaron B. Ross in May of 1964
• 14 : Photo of Rainbow Bridge, Utah, visited by Aaron B. Ross in May of 1964
• 15 : Photo of Rainbow Bridge, Utah, visited by Aaron B. Ross in May of 1964
• 16 : Photo of Rainbow Bridge, Utah, visited by Aaron B. Ross in May of 1964
• 17 : Photo of Rainbow Bridge, Utah, visited by Aaron B. Ross in May of 1964
• 18 : Photo shows a man investigating an Ancestral Puebloan site in the Glen Canyon region, during on one of Aaron Belnap Ross's river trips,  May of 1964.
• 19 : Photo shows people investigating an Ancestral Puebloan site in the Glen Canyon region, during on one of Aaron Belnap Ross's river trips, May of 1964.  The site appears to be near the edge of the rising Lake Powell.
• 20 : Photo shows a man investigating an Ancestral Puebloan food storage site in the Glen Canyon region, during on one of Aaron Belnap Ross's river trips, May of 1964.
• 21 : Photo shows people investigating an Ancestral Puebloan site in the Glen Canyon region, during on one of Aaron Belnap Ross's river trips, May of 1964.
• 22 : Photo shows an Ancestral Puebloan site in the Glen Canyon region, during on one of Aaron Belnap Ross's river trips, May of 1964.
• 23 : Photo of an unidentified desert plant in Glen Canyon during the Aaron Belnap Ross river trip in May of 1964.
• 24 : Photo of flowers (Indian paintbrush?) blooming in Glen Canyon during the Aaron Belnap Ross river trip in May of 1964.
• 25 : Photo of scarlet globe mallow (Sphaeralcea coccinea) blooming in Glen Canyon during the Aaron Belnap Ross river trip in May of 1964.
• 26 : Photo of flowers (probably Western spiderwort, Tradescantia occidentalis) blooming in Glen Canyon during the Aaron Belnap Ross river trip in May of 1964.
• 27 : Photo of desert flowers in bloom (probably scarlet globe mallows and phacelias) along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in May of 1964.
• 28 : Photo of blooming asters in Glen Canyon during the Aaron Belnap Ross river trip in May of 1964.
• 29 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip in May of 1964.
• 30 : Photo of boats on the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in the spring of 1964.
• 31 : Photo of passengers on a boat in Glen Canyon, during an Aaron Belnap Ross Colorado River trip in May of 1964.
• 32 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in May of 1964.
• 33 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in the spring of 1964.
• 34 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in the spring of 1964.
• 35 : Photo of a scene along the Colorado River in Glen Canyon during the Aaron Belnap Ross river trip in May of 1964.
• 36 : Photo of a boat in a side canyon of the Colorado River (Hidden Passage?) in Glen Canyon during an Aaron Belnap Ross river trip in May of 1964.
• 37 : Landscapes
• 38 : Landscapes
• 39 : Landscapes
• 40 : Landscapes

• 1 : Photo of people checking out Steer Ridge Rapid on the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 2 : Photo of a boat running a rapid in Desolation Canyon on the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 3 : Photo of a boat running a rapid in Desolation Canyon on the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 4 : Photo of a boat running a rapid in Desolation Canyon on the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 5 : Photo of a boat running a rapid in Desolation Canyon on the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 6 : Photo of a boat running a rapid in Desolation Canyon on the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 7 : Photo of a boat running a rapid in Desolation Canyon on the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 8 : Photo of a boat running a rapid in Desolation Canyon on the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 9 : Photo of a scene in Desolation Canyon on the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 10 : Photo of a scene in Desolation Canyon on the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 11 : Photo of a scene in Desolation Canyon on the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 12 : Photo of a rock formation dubbed Abe Lincoln, taken during Dr. Aaron Belnap Ross's trip on the Green River in Desolation Canyon, May-June 1965.
• 13 : Photo of a scene at Rock Creek Ranch along the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 14 : Photo of a scene at Rock Creek Ranch along the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 15 : Photo of a scene at Rock Creek Ranch along the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 16 : Photo of a man holding a rattlesnake at Rock Creek Ranch along the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 17 : Photo of a man holding a rattlesnake at Rock Creek Ranch along the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 18 : Photo of a rattlesnake at Rock Creek Ranch along the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 19 : Photo of a rattlesnake at Rock Creek Ranch along the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965
• 20 : Photo of a rattlesnake at Rock Creek Ranch along the Green River, during Aaron B. Ross's river trip down the Green in May and June of 1965

• 1 : Photo of a view of Dead Horse Point from the Colorado River below Moab during an Aaron Belnap Ross river trip in 1965.
• 2 : Photo of motor boats run by Don Harris and Jack Brennan on the Colorado River below Moab during an Aaron Belnap Ross river trip in 1965.
• 3 : Photo of Don Harris's boat on the Colorado River below Moab in 1965.
• 4 : Photo of a scene in the upper part of the Colorado River's Cataract Canyon during a Aaron Belnap Ross river trip in1965.
• 5 : Photo of a scene in upper Cataract Canyon on the Colorado River during an Aaron Belnap Ross river trip in 1965.
• 6 : Photo of a scene in the Colorado River's Cataract Canyon during a Aaron Belnap Ross river trip in 1965.
• 7 : Photo of a man with a camera, identified as Ralph Stiblsy, along the Colorado River, during an Aaron Belnap Ross river trip in 1965.
• 8 : Photo of a view of Cataract Canyon, visited during an Aaron Belnap Ross river trip in 1965.

• 1 : Photo of the lower end of Glen Canyon near Lees Ferry, near the start of the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 2 : Photo of the lower end of Glen Canyon near Lees Ferry, near the start of the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 3 : Photo of a scene along the Colorado River above Lees Ferry in Glen Canyon during the Aaron Belnap Ross river trip in June of 1965.
• 4 : Photo of Glen Canyon just below the dam, seen at the start of the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 5 : Photo of Glen Canyon cliff walls above Lees Ferry, seen at the start of the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 6 : Photo of a view of Glen Canyon Dam and the bridge over the Colorado River, taken during one of Aaron Belnap Ross river trips in June of 1965.
• 7 : Photo of a view of Glen Canyon Dam and the bridge over the Colorado River, taken during one of Aaron Belnap Ross river trips in June of 1965.
• 8 : Photo of a view of Glen Canyon Dam and the bridge over the Colorado River, taken during one of Aaron Belnap Ross river trips in June of 1965.
• 9 : Photo of a view of Glen Canyon Dam and the bridge over the Colorado River, taken during one of Aaron Belnap Ross river trips in June of 1965.
• 10 : Photo of the Colorado River above Lees Ferry on one of Aaron Belnap Ross's river trips in June of 1965.
• 11 : Photo of Lees Ferry and the Colorado River at the start of Aaron Belnap Ross's river trip through the Grand Canyon in June of 1965.
• 12 : Photo of a view of the highway near Cliff Dwellers Lodge and the Vermilion Cliffs, seen near the start of the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 13 : Photo of Otis R. "Dock" Marston, early Grand Canyon river runner, at Cliff Dwellers Lodge near Lees Ferry, Arizona, in June of 1965, with friend Jimmy Jordan
• 14 : Photo of Otis R. "Dock" Marston, early Grand Canyon river runner, at Cliff Dwellers Lodge near Lees Ferry, Utah, in June of 1965, with friend Jimmy Jordan
• 15 : Photo of Otis R. "Dock" Marston (seated on left), early Grand Canyon river runner, at Cliff Dwellers Lodge near Lees Ferry, Utah, in June of 1965, with friend Jimmy Jordan.  Standing is a younger man named Calvin.
• 16 : Photo of Jack Brennan, a veteran river runner, at the Cliff Dweller's Lodge near Lees Ferry, before the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 17 : Photo of Jack Brennan, a veteran river runner, at the Cliff Dweller's Lodge near Lees Ferry, before the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 18 : Photo of Otis R. "Dock" Marston, early Grand Canyon river runner, at Cliff Dwellers Lodge near Lees Ferry, Arizona, in June of 1965
• 19 : Photo of Don Harris, early commercial river runner, and wife Mary at Cliff Dwellers Lodge near Lees Ferry, Arizona, in June of 1965
• 20 : Photo of a view of Vaseys Paradise, an oasis about 32 miles down the Colorado River from Lees Ferry. Visited by Aaron B. Ross in June of 1965
• 21 : Photo of test holes in the walls of Marble Canyon near the site of a proposed dam, Arizona, visited by Aaron B. Ross on a Colorado River trip in June of 1965
• 22 : Photo of test holes in the walls of Marble Canyon near the site of a proposed dam, Arizona, visited by Aaron B. Ross on a Colorado River trip in June of 1965
• 23 : Photo of test holes in the walls of Marble Canyon near the site of a proposed dam, Arizona, visited by Aaron B. Ross on a Colorado River trip in June of 1965
• 24 : Photo of test holes in the walls of Marble Canyon near the site of a proposed dam, Arizona, visited by Aaron B. Ross on a Colorado River trip in June of 1965
• 25 : Photo shows a scene in Marble Canyon on the Colorado River, during Aaron B. Ross's river trip of June 1965
• 26 : Photo shows a scene in Marble Canyon on the Colorado River, during Aaron B. Ross's river trip of June 1965
• 27 : Photo shows a scene in Marble Canyon on the Colorado River, during Aaron B. Ross's river trip of June 1965
• 28 : Loper, Bert, 1869-1949--Monuments--Photographs; Boats and boating--Colorado River (Colo.-Mexico)--Photographs
• 29 : Photo shows a view up Marble Canyon from near the confluence of the Colorado and Little Colorado rivers, during Aaron B. Ross's river trip of June 1965
• 30 : Photo shows a view up Marble Canyon from near the confluence of the Colorado and Little Colorado rivers, during Aaron B. Ross's river trip of June 1965
• 31 : Photo of a view of the canyon of the Little Colorado River, during the Aaron Belnap Ross river trip in June of 1965.
• 32 : Photo of a view of the canyon of the Little Colorado River, during the Aaron Belnap Ross river trip in June of 1965.
• 33 : Photo of a view of the canyon of the Little Colorado River, during the Aaron Belnap Ross river trip in June of 1965.
• 34 : Photo of the Protozoic cliffs above the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 35 : Photo of motorboats along the Colorado River, with Protozoic rock cliffs in background, on the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.  Man in foreground may be Jack Brennan.
• 36 : Photo of the Protozoic rock cliffs above the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 37 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in June of 965.
• 38 : Photo of the Phantom Ranch landing at the mouth of Bright Angel Canyon along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 39 : Photo of the Phantom Ranch suspension bridge over the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 40 : Photo of Bright Angel Creek near Phantom Ranch, during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 41 : Photo of a scene near Phantom Ranch on the Colorado River, during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 42 : Photo of the Phantom Ranch landing at the mouth of Bright Angel Canyon along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 43 : Photo of the Phantom Ranch suspension bridge over the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 44 : Photo of the Phantom Ranch landing at the mouth of Bright Angel Canyon along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 45 : Photo of the Phantom Ranch landing at the mouth of Bright Angel Canyon along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 46 : Photo of people working to move a boat at Lees Ferry, Arizona, prior to the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 47 : Photo of people working to move a boat at Lees Ferry, Arizona, prior to the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 48 : Photo of people working to move a boat at Lees Ferry, Arizona, prior to the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 49 : Photo of men pulling a boat across sand at Lees Ferry, Arizona, prior to the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 50 : Photo of people working to move a boat at Lees Ferry, Arizona, prior to the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 51 : Photo of a scene along the Colorado River, seen on the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 52 : Photo of three women who were passengers on the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 53 : Photo of Sam O'Dell, a passenger on a Aaron Belnap Ross Colorado River trip in June of 1965.
• 54 : Photo of Jerry and Diane White, passengers on the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 55 : Photo of John Ron, a passenger on the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 56 : Photo of fellow passengers during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 57 : Photo of a campsite landing area along the Colorado River six miles below Phantom Ranch, during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 58 : Photo of Elves Chasm, a natural spring along the Colorado River near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in June of 1965.
• 59 : Photo of Elves Chasm, a natural spring along the Colorado River near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in June of 1965.
• 60 : Photo of Elves Chasm, a natural spring along the Colorado River near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in June of 1965.
• 61 : Photo of Havasu Creek, a tributary of the Colorado River in  the Grand Canyon, during an Aaron Belnap Ross river trip in June of 1965.
• 62 : Photo of Havasu Creek, a tributary of the Colorado River, seen on the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 63 : Photo of a man swimming in Havasu Creek, during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 64 : Photo of a view up Gateway Canyon from the Colorado River during the Aaron Belnap Ross river trip in June of 1965.
• 65 : Photo of a view up Gateway Canyon from the Colorado River during the Aaron Belnap Ross river trip in the spring of 1965.
• 66 : Photo of a view up Gateway Canyon from the Colorado River during the Aaron Belnap Ross river trip in June of 1965.
• 67 : Photo of a view up Gateway Canyon from the Colorado River during the Aaron Belnap Ross river trip in June of 1965.
• 68 : Photo of a view up Gateway Canyon from the Colorado River during the Aaron Belnap Ross river trip in the spring of 1965.
• 69 : Photo of a view up Gateway Canyon from the Colorado River during the Aaron Belnap Ross river trip in June of 1965.
• 70 : Photo of tracks (probably snake)
• 71 : Photo of the lower portion of Lava Falls on the Colorado River in the Grand Canyon, during the Aaron Belnap Ross river trip in June of 1965.
• 72 : Photo of the Colorado River at Lava Falls, during the Aaron Belnap Ross river trip through Grand Canyon in June of 1965.
• 73 : Photo of Don Harris running Lava Falls, during the Aaron Belnap Ross river trip through Grand Canyon in June of 1965.
• 74 : Photo of Don Harris running Lava Falls, during the Aaron Belnap Ross river trip through Grand Canyon in June of 1965.
• 75 : Photo of Don Harris running Lava Falls, during the Aaron Belnap Ross river trip through Grand Canyon in June of 1965.
• 76 : Photo of Jerry White running Lava Falls, during the Aaron Belnap Ross river trip through Grand Canyon in June of 1965.
• 77 : Photo of Jerry White running Lava Falls, during the Aaron Belnap Ross river trip through Grand Canyon in June of 1965.
• 78 Photo of Raft in Lava Falls
• 79 : Photo of the lava wall at Lava Falls, during the Aaron Belnap Ross river trip through Grand Canyon in June of 1963.
• 80 : Photo of South side of canyon at Lava Falls
• 81 : Photo of a scene below Lava Falls on the Colorado River in the Grand Canyon, during the Aaron Belnap Ross river trip in June of 1965.
• 82 : Photo of the Colorado River below Lava Falls, during the Aaron Belnap Ross river trip through Grand Canyon in June of 1965.
• 83 : Photo of a scene below Lava Falls on the Colorado River in the Grand Canyon, during the Aaron Belnap Ross river trip in June of 1965.
• 84 : Photo of basalt cliffs below Lava Falls along the Colorado River in the Grand Canyon, during the Aaron Belnap Ross river trip in June of 1965.
• 85 : Photo of a passenger on the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 86 : Photo of a passenger from Chicago, during the Aaron Belnap Ross river trip on  the Colorado River in June of 1965.
• 87 : Photo of Don Thompson from Massachusetts, a passenger on the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 88 : Photo of Ralph Peterson driving a motor boat through a rapid of the Colorado River on the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.
• 89 : Photo of the rapids on the Colorado River at Mile 205 below Lees Ferry, during the Aaron Belnap Ross river trip through the Grand Canyon in June of 1965.

• 1 : Photo of Lees Ferry and the Colorado River at the start of Aaron Belnap Ross's river trip through the Grand Canyon in May of 1966.
• 2 : Photo of Lees Ferry and the Colorado River at the start of Aaron Belnap Ross's river trip through the Grand Canyon in May of 1966.
• 3 : Photo of a scene in Marble Canyon near the site of a proposed dam, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1966
• 4 : Photo of a scene in Marble Canyon near the site of a proposed dam, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1966
• 5 : Photo of a scene in Marble Canyon at the site of a proposed dam, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1966
• 6 : Photo of a scene in Marble Canyon near the site of a proposed dam, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1966
• 7 : Photo of a scene along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in June of 1972
• 8 : Photo of a desert plant seen during Aaron Belnap Ross's river trip through the Grand Canyon in May of 1966.
• 9 : Photo of the grave of a Boy Scout who died in 1956 near President Harding Rapid along the Colorado River in the Grand Canyon, visited during the Aaron Belnap Ross river trip in May of 1966.
• 10 : Photo of a man at the grave of Peter Hansborough, who drowned in 1889 during an exploration survey. The site is near President Harding Rapid on the Colorado River, and was visited during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1966.
• 11 : Photo of an inscription marking the grave of Peter Hansborough, who drowned in 1889 during an exploration survey.  The site is near President Harding Rapid on the Colorado River, and was visited during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1966.
• 12 : Photo of the grave of a Boy Scout who died in 1956 near President Harding Rapid along the Colorado River, visited during the Aaron Belnap Ross river trip in May of 1966.
• 13 : Photo of a scene along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1966
• 14 : Photo of a scene along the Colorado River, just below the confluence with the Little Colorado, during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1966.
• 15 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in May of 1966.
• 16 : Photo of a scene along the Colorado River in the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1966.
• 17 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1966.
• 18 : Photo of basalt cliffs above the Colorado River seen during Aaron Belnap Ross's river trip through the Grand Canyon in May of 1966.
• 19 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip in May of 1966.
• 20 : Photo of a scene along the Colorado River with an ancient fault revealed by an unconformity in the stratigraphy.  Seen during the Aaron Belnap Ross river trip through the Grand Canyon in May of 1966.
• 21 : Photo of blooming brittle bush (Encelia farinosa), seen near the Colorado River.  Seen during the Aaron Belnap Ross river trip in May of 1965.
• 22 : Photo of a mesquite bush growing along the Colorado River during the Aaron Belnap Ross river trip in the spring of 1966.
• 23 : Photo of a boat in Hance Rapid along the Colorado River near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1966.
• 24 : Photo of a boat in Hance Rapid along the Colorado River near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1966.
• 25 : Photo of a boat in Hance Rapid along the Colorado River near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1966.
• 26 : Photo of a boat in Hance Rapid along the Colorado River near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1966.
• 27 : Photo of a man watching a boat go through Hance Rapid along the Colorado River near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1966.
• 28 : Photo of Granite Falls Rapid on the Colorado River during Aaron Belnap Ross's river trip through the Grand Canyon in May of 1966.
• 29 : Photo of a boat running Granite Falls Rapid on the Colorado River during Aaron Belnap Ross's river trip through the Grand Canyon in May of 1966.
• 30 : Photo of a boat in Granite Rapid along the Colorado River in the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1966.
• 31 : Photo of Granite Falls Rapid on the Colorado River during Aaron Belnap Ross's river trip through the Grand Canyon in May of 1966.
• 32 : Photo of raft and passengers on a beach just above Elves Chasm during Aaron Belnap Ross's river trip through the Grand Canyon in May of 1966.

• 1 : Photo of a boat on the Yampa River at Hardings Hole in Colorado, before Aaron B. Ross's river trip down the Yampa in July of 1966
• 2 : Photo of a boat on the Yampa River at Hardings Hole in Colorado, before Aaron B. Ross's river trip down the Yampa in July of 1966
• 3 : Photo of a view of Hardings Hole in Colorado, before Aaron B. Ross's river trip down the Yampa River in July of 1966
• 4 : Photo of a boat by the Yampa River at Hardings Hole in Colorado, before Aaron B. Ross's river trip down the Yampa in July of 1966
• 5 : Photo of people having a picnic at Hardings Hole in Colorado, visited during Aaron B. Ross's river trip down the Yampa River in July of 1966
• 6 : Photo of a view of the Mantle Ranch in Colorado, visited during Aaron B. Ross's river trip down the Yampa River in July of 1966
• 7 : Photo of boats setting out down the Yampa River, during Aaron B. Ross's river trip in July of 1966
• 8 : Photo of boats setting out down the Yampa River, during Aaron B. Ross's river trip in July of 1966
• 9 : Photo of a scene along the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 10 : Photo of a scene along the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 11 : Photo of a scene along the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 12 : Photo of a scene along the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 13 : Photo of a scene along the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 14 : Photo of a scene along the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 15 : Photo of a scene along the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 16 : Photo of Jack Brennan and three others on a boat on the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 17 : Photo of a scene along the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 18 : Photo of Don Lehman and two others on a boat on the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 19 : Photo of a scene along the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 20 : Photo of a scene along the Yampa River, during Aaron B. Ross's river trip down the Yampa in July of 1965 or 1966. Possibly the Warm Spring Draw
• 21 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 22 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 23 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 24 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 25 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 26 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 27 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 28 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 29 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 30 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 31 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 32 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 33 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 34 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 35 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 36 : Photo taken at Warm Spring rapid, during Aaron B. Ross's river trip down the Yampa in July of 1966
• 37 : Photo of a raft at the confluence of the Yampa and Green rivers after Aaron B. Ross's river trip down the Yampa in July of 1966
• 38 : Photo of a raft at the confluence of the Yampa and Green rivers after Aaron B. Ross's river trip down the Yampa in July of 1966
• 39 : Photo of a raft at the confluence of the Yampa and Green rivers after Aaron B. Ross's river trip down the Yampa in July of 1966
• 40 : Photo of a boat at Echo Park on the Green River, during Aaron B. Ross's river trip down the Green in July of 1966
• 41 : Photo of a boat on the Green River where it crosses the Mitten Park Fault in Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966
• 42 : Photo of scene on the Green River in Whirlpool Canyon, Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966
• 43 : Photo of scene on the Green River below Whirlpool Canyon, Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966
• 44 : Photo of scene on the Green River above Split Mountain, Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966
• 45 : Photo of scene on the Green River at Island Park, Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966
• 46 : Photo of Moonshine Rapid on the Green River in Split Mountain Canyon, Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966
• 47 : Photo of Moonshine Rapid on the Green River in Split Mountain Canyon, Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966
• 48 : Photo of Moonshine Rapid on the Green River in Split Mountain Canyon, Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966
• 49 : Photo of Moonshine Rapid on the Green River in Split Mountain Canyon, Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966
• 50 : Photo of Moonshine Rapid on the Green River in Split Mountain Canyon, Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966
• 51 : Photo of Moonshine Rapid on the Green River in Split Mountain Canyon, Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966
• 52 : Photo of Moonshine Rapid on the Green River in Split Mountain Canyon, Dinosaur National Monument, during Aaron B. Ross's river trip down the Green in July of 1966

• 1-6: On the road to Wheeler Peak in Nevada's Snake Range in July of 1966.

• 1: Cactus
• 2: Surrounding landscape from the River.
• 3: Camp
• 4: Bedrock Rapid
• 5-14: Deer Creek
• 15: Creek
• 16-18: Lava Falls
• 19: Unidentified people on boat
• 20: Flower
• 21: Surrounding landscape from the River.
• 22-23: Unidentified people on boat
• 24-25: The River

• 1-3: Badger Rapid, April 1967.
• 4: Unidentified people, April 1967.
• 5: [ladder to test holes near Marble Canyon damsite], April 1967.
• 6-7: Boats on river, April 1967.
• 8: Unloading boat, April 1967.
• 9: View from river, April 1967.
• 10-20: [Hance Rapid], April 1967.
• 21-22: [beach near Phantom Ranch], April 1967.
• 23-27: [Horn Creek Rapid], April 1967.
• 28-31: [Crystal Rapid], April 1967.
• 32-34: View from river, April 1967.
• 35-36: [Deer Creek], April 1967.
• 37-48: [Havasu, including Beaver and Mooney Falls], July 1968.
• 49-52: Surrounding views from the River, July 1968.
• 53: North side of canyon at Lava Falls, July 1968.
• 54: Above Lava Falls, July 1968.
• 55-57: [boat in Lava Falls], July 1968.
• 58: [boat in Lava Falls], April 1967.
• 59: Pontoons are [roped?] below Lava, July 1968.
• 60: [Lejune?] raft with section out, Lava Falls, July 1968.
• 61: Raft section blown out, July 1968.
• 62: [Lejune?] raft with section blown out, July 1968.
• 63: Unidentified person, July 1968.

• 1-2: View from the Yampa River
• 3: Unidentified people on the Yampa River
• 4: People and gear on the riverbank
• 5: Mountain scenery from the Yampa River
• 6: People on a boat
• 7: View from the Yampa River
• 8-11: People rafting downriver
• 12-17: Scenery, view from the Yampa River
• 18: Unidentified person standing in raft

• 1: Approach to Lees Ferry
• 2: Plaques near Navajo Bridge
• 3-4: Paradise Canyon, South Canyon, camp
• 5-8: Paradise Canyon, South Canyon
• 9: Paradise Canyon ,South Canyon, lizard
• 10-11: Paradise Canyon, South Canyon
• 12-13: Paradise Canyon ,South Canyon, lizard
• 14: Colorado River
• 15-17: Redwall Cavern
• 18-30: Views from the river: flowers, scenery, etc.
• 31-36: Deer Creek
• 37: View of the river
• 38: People taking shade under giant rock
• 39-50: People: Number 44 is probably Dr. and Mrs. Sam Hughes, according to slide box label; Number 49 is Don Harris]
• 51-55: Lava Falls
• 56-57: Lake Mead

• 1: Lees Ferry
• 2: Marble Canyon
• 3-4: Bert Loper's boat near Buckfarm Canyon
• 5-8: Excavations at Unkar Delta
• 9-13: Elves' Chasm
• 14: Verdant garden trail up Havasu
• 15: Between Beaver Falls and Mooney falls
• 16-21: Havasu area
• 22: Below Lava Falls
• 23: Looking downstream above Lava Falls
• 24-31: Scenery, views from the river.
• 32-36: retrieval of stranded? boat
• 37-38: Retrieval of different stranded boat
• 39: Ted Hatch in checker shirt stranded pontoon boat
• 40-42: Unidentified people

• 1 : Photo taken on a hike in Grand Canyon National Park, during Aaron B. Ross's Colorado River trip in April of 1968
• 2 : Photo taken on a hike in Grand Canyon National Park, during Aaron B. Ross's Colorado River trip in April of 1968
• 3 : Photo taken on a hike in Grand Canyon National Park, during Aaron B. Ross's Colorado River trip in April of 1968
• 4 : Photo taken on a hike in Grand Canyon National Park, during Aaron B. Ross's Colorado River trip in April of 1968
• 5 : Photo taken on a hike in Grand Canyon National Park, during Aaron B. Ross's Colorado River trip in April of 1968
• 6 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 7 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 8 : Photo of a rock formation along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 9 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 10 : Photo of a passenger holding a lizard during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 11 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 12 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 13 : Photo of passengers on an Aaron Belnap Ross Colorado River trip through the Grand Canyon in April of 1968.
• 14 : Photo of passengers aboard a raft on the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 15 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 16 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 17 : Photo of a young man relaxing on a raft on the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 18 : Photo of passengers relaxing on a boat along the Colorado River, during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 19 : Photo of a passenger on the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 20 : Photo of rafters on the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 21 : Photo of birds on the shore along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 22 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 23 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 24 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 25 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 26 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 27 : Photo of volcanic rock seen along the Colorado River, during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 28 : Photo of a desert plant seen along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 29 : Photo of a scene along the Colorado River during a Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 30 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in May of 1968.
• 31 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 32 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 33 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 34 : Photo of a view of the Colorado River from aboard a raft, during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 35 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 36 : Photo of a camping scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 37 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 38 : Photo of a scene along the Colorado River near the start of the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968. Probably in Marble Canyon.
• 39 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1968.
• 40 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 41 : Photo of a scene along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.
• 42 : Photo of vegetation along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in April of 1968.

• 1 : Photo shows members of Aaron B. Ross party and a goat, during a hike near Labyrinth Canyon, during a river trip in April of 1969
• 2 : Photo shows members of Aaron B. Ross party and a goat, during a hike near Labyrinth Canyon, during a river trip in April of 1969
• 3 : Photo shows a member of Aaron B. Ross party during a hike in Canyonlands National Park near Labyrinth Canyon, during a river trip in April of 1969
• 4 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 5 : Photo shows a scene along the Colorado River's Labyrinth Canyon in Canyonlands National Park, during Aaron B. Ross's river trip in April of 1969
• 6 : Photo shows a scene along the Colorado River's Labyrinth Canyon in Canyonlands National Park, during Aaron B. Ross's river trip in April of 1969
• 7 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 8 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 9 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 10 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 11 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 12 : Photo shows a scene along the Colorado River's Labyrinth Canyon in Canyonlands National Park, during Aaron B. Ross's river trip in April of 1969
• 13 : Photo shows a scene along the Colorado River's Labyrinth Canyon in Canyonlands National Park, during Aaron B. Ross's river trip in April of 1969
• 14 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 15 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 16 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 17 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 18 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 19 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 20 : Photo shows part of the Doll House, a rock formation near Spanish Bottom in the Maze District of Canyonlands National Park. Seen during Aaron B. Ross's river trip in April of 1969.
• 21 : Photo shows rock formations near Spanish Bottom in the Maze District of Canyonlands National Park. Seen during Aaron B. Ross's river trip in April of 1969.
• 22 : Photo shows part of the Doll House, a rock formation near Spanish Bottom in the Maze District of Canyonlands National Park. Seen during Aaron B. Ross's river trip in April of 1969.
• 23 : Photo shows part of the Doll House, a rock formation near Spanish Bottom in the Maze District of Canyonlands National Park. Seen during Aaron B. Ross's river trip in April of 1969.
• 24 : Photo shows part of the Doll House, a rock formation near Spanish Bottom in the Maze District of Canyonlands National Park. Seen during Aaron B. Ross's river trip in April of 1969.
• 25 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 26 : Photo shows a landscape scene during a hike in Canyonlands National Park near Labyrinth Canyon, during Aaron B. Ross's river trip in April of 1969
• 27 : Photo shows a scene along the Colorado River's Cataract Canyon in Canyonlands National Park, during Aaron B. Ross's river trip in April of 1969
• 28 : Photo shows a scene along the Colorado River's Cataract Canyon in Canyonlands National Park, during Aaron B. Ross's river trip in April of 1969
• 29 : Photo shows a scene in the Colorado River's Cataract Canyon during Aaron B. Ross's river trip in April of 1969
• 30 : Photo shows a scene in the Colorado River's Cataract Canyon during Aaron B. Ross's river trip in April of 1969
• 31 : Photo shows a scene in the Colorado River's Cataract Canyon during Aaron B. Ross's river trip in April of 1969
• 32 : Photo shows a scene in the Colorado River's Cataract Canyon during Aaron B. Ross's river trip in April of 1969
• 33 : Photo shows a scene in the Colorado River's Cataract Canyon during Aaron B. Ross's river trip in April of 1969
• 34 : Photo shows a scene in the Colorado River's Cataract Canyon during Aaron B. Ross's river trip in April of 1969
• 35 : Photo shows a scene in the Colorado River's Cataract Canyon during Aaron B. Ross's river trip in April of 1969
• 36 : Photo shows a scene in the Colorado River's Cataract Canyon during Aaron B. Ross's river trip in April of 1969
• 37 : Photo shows a scene in the Colorado River's Cataract Canyon during Aaron B. Ross's river trip in April of 1969
• 38 : Photo shows a scene in the Colorado River's Cataract Canyon during Aaron B. Ross's river trip in April of 1969
• 39 : Photo shows a scene in the Colorado River's Cataract Canyon during Aaron B. Ross's river trip in April of 1969

• 1-3: Launch at Lees Ferry
• 4-5: Lower Glen Canyon
• 6: Badger Creek, "Upriver" Ross
• 7-9: Badger Creek
• 10-11: People on riverbank
• 12-19: Rapid
• 20-35: Scenery and rapids
• 36-40: People
• 41: Dubendorff rapid
• 42: Breakfast, Two Bit Bar
• 43-51: Lava Falls
• 52: 217 Mile Rapid
• 53-58: Lake Mead

• 1-33: Havasu area, including waterfalls and people hiking
• 34-35: Unidentified rapid
• 36: Scenery, view from river
• 37-40: Ross in Lava Falls
• 41: Temple Bar

• 1-2: Buck Farm Canyon
• 3-6: Buck Farm Canyon; euphoria rossei
• 7-8: Little Colorado River, Chuar Butte obscured by rain storm
• 9: Little Colorado River; R. Gott in front of tent
• 10: Little Colorado River, rainstorm
• 11: Little Colorado River, rain clearing
• 12: Little Colorado River, Ben Beamer's cabin
• 13-14: Little Colorado River, people
• 15: Phil Wagner
• 16-17: Below Little Colorado
• 18: Near Unkar rapid
• 19-21: Above Unkar rapid
• 22: Above Hance rapid
• 23: Scenery, view from river
• 24: Tapeats Creek trail
• 25: Tapeats Creek trail; Bass marble and dike
• 26: Scenery
• 27: Up Tapeats Creek
• 28: Thunder River
• 29: Salvia carnosa on trail to Thunder River
• 30: Thunder River falls in spring
• 31-33: Thunder River falls
• 34: Surprise Valley
• 35: Deer Creek from Surprise Valley
• 36: Deer Creek near right fork spring
• 37: Above Kanab Creek

• 1-2: San Rafael River gorge in San Rafael Swell
• 3: San Rafael
• 4-5: Below Capitol Reef, south of Henry Mountains
• 6: Below Capitol Reef
• 7-8: Below Capitol Reef; Morrison Formation
• 9: Below Capitol Reef
• 10: Burr Trail
• 11: Escalante, upper
• 12: Entrance sign for Grand Canyon National Park, South Rim

• 1: Colorado River below Fruita [Colorado] and above Westwater [canyon]
• 2-4: Below Westwater Canyon, Colorado River
• 5-8: Colorado River above Moab
• 9-10: Colorado River above Moab; Fisher Towers
• 11-13: Colorado River above Moab
• 14-15: Colorado River above Moab; LaSal Mountains
• 15-19: Colorado River above Moab

• 1-2: South Rim from just below Little Colorado River
• 3-6: Chuar Butte below Little Colorado River, campsite

• 1-4: Rock slide, just above Badger Rapid, May 5, 1971 Photo of a rock slide above Badger Rapid in Marble Canyon, seen by Aaron B. Ross on a Colorado River trip in May of 1971
• 5-6: 10-man rafts from Oregon, Pete Cameron, May 6, 1971 Photo of a rock slide above Badger Rapid in Marble Canyon, seen by Aaron B. Ross on a Colorado River trip in May of 1971
• 7-8: Vasey's Paradise; largest opening empty, May 6, 1971 Photo of a rock slide above Badger Rapid in Marble Canyon, seen by Aaron B. Ross on a Colorado River trip in May of 1971
• 9: Marble Canyon just below Vasey's, May 6, 1971 Photo of a rock slide above Badger Rapid in Marble Canyon, seen by Aaron B. Ross on a Colorado River trip in May of 1971
• 10: Stanton's Cave, just above Vasey's, May 6, 1971 Photo of two people in a raft on the Colorado River in the Grand Canyon, May, 1971.
• 11: Marble Canyon, May 7, 1971 Photo of two people in a raft on the Colorado River in the Grand Canyon, May, 1971.
• 12-16: Lower Marble [Canyon] above Nankoweap, May 7, 1971 Photo of Vasey's Paradise, an oasis area along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 17: On trail to pueblo granaries at Nankoweap; Art and Doris Halmgren[?], May 7, 1971 Photo of Vasey's Paradise, an oasis area along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 18: Drying out plant press at junction of Little Colorado River, May 7, 1971 Photo of a scene along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 19: Downstream, Marble Canyon, from trail to Pueblo granaries at Nankoweap, May 7, 1971 Photo of Stanton's Cave area along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 20: Downstream from above Nankoweap, May 7, 1971 Photo of a scene along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 21: Marble Canyon above Nankoweap, May 7, 1971 Photo of a scene along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 22: Lower end of Little Colorado River; pontoon on way to sample fish, May 7, 1971 Photo of a scene along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 23-24: Junction, Little Colorado River, May 7, 1971 Photo of a scene along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 25: Little Colorado River, May 7, 1971 Photo of a scene along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 26: Junction of Little Colorado River with pontoon at entrance above, May 7, 1971 Photo of a scene along the Colorado River in Marble Canyon, Arizona, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 27: Marble Canyon looking upstream from Little Colorado [river] , May 7, 1971 Photo of hikers on trail to ancient granaries at Nancoweap Canyon, Grand Canyon National Park, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 28: Upstream view of Marble Canyon above junction of Little Colorado, May 7, 1971 Photo of Aaron B. Ross party drying out plant presses at the mouth of Little Colorado River, during the river trip through Grand Canyon in May of 1971.
• 29-30: Chuar Butte; airplane accident, May 7, 1971 Photo of a view of the Colorado River in Marble Canyon, Arizona, near the mouth of the Little Colorado, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 31: Lower Marble Canyon, May 7, 1971 Photo of a view of the Colorado River in Marble Canyon, Arizona, near the mouth of the Little Colorado, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 32-33: View of South Rim just below Little Colorado [river], May 8, 1971 Photo of a scene at lower end of Little Colorado River, during the Aaron Belnap Ross river trip through Grand Canyon in May of 1971.
• 34: View of South Rim and Desert House [Desert View Watchtower] just below Little Colorado [river], May 8, 1971 Photo of the confluence of the Colorado and Little Colorado rivers near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1971.
• 35-036: Grand Canyon below Lava Canyon, May 8, 1971 Photo of a scene at the junction of the Colorado and Little Colorado rivers during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1971.
• 37: Abandoned old boat just above 75-mile rapid, May 8, 1971 Photo of the confluence of the Colorado and the Little Colorado rivers near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1971.
• 38: Grand Canyon just above Hance Rapid, May 8, 1971 Photo of a scene at the confluence of the Colorado and Little Colorado rivers, during the Aaron Belnap Ross river trip through Grand Canyon in May of 1971.
• 39: Upstream from Hance Rapid; lunch, raining, May 8, 1971 Photo shows a view up Marble Canyon from near the confluence of the Colorado and Little Colorado rivers, during Aaron B. Ross's river trip of June 1965
• 40: Lunchtime at Hance Rapid, May 8, 1971 Photo of a view of the Colorado River in Marble Canyon, Arizona, near the mouth of the Little Colorado, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 41: Lunch and warm up at Hance; raining, May 8, 1971 Photo of the area of an airplane crash along the Colorado River in Marble Canyon, Arizona, near the mouth of the Little Colorado, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 42: Clear Creek at junction with Colorado River, May 8, 1971 Photo of the area of an airplane crash along the Colorado River in Marble Canyon, Arizona, near the mouth of the Little Colorado, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 43: Up Clear Creek, May 8, 1971 Photo of a scene along the Colorado River in Marble Canyon, Arizona, near the mouth of the Little Colorado, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 44: Up Clear Cree; Brian and Ray, May 8, 1971 Photo of a scene along the Colorado River in Marble Canyon, Arizona, near the mouth of the Little Colorado, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 45-046: Up Clear Creek, May 8, 1971 Photo of a scene along the Colorado River in Marble Canyon, Arizona, near the mouth of the Little Colorado, visited by Aaron B. Ross on a Colorado River trip in May of 1971
• 47: Hiking up Clear Creek, May 8, 1971 Photo of a scene along the Colorado River, just below the confluence of the Little Colorado, during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1971.
• 48: Campsite just above Clear Creek, May 8, 1971 Photo of a scene along the Colorado River below Lava Falls in the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1971.
• 49: Campsite, Clear Creek, May 8, 1971 Photo of the Colorado River below Lava Canyon in the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1971.
• 50: Campsite and view downstream from just above Clear Creek, May 8, 1971 Photo of two people checking out an abandoned boat just above 75-mile rapid on the Colorado River in Grand Canyon, Dr. Aaron Belnap Ross trip, May 8, 1971
• 51: Campsite just above Clear Creek, May 9, 1971 Photo of a scene along the Colorado River above Hance Rapids during the Aaron Belnap Ross river trip through the Grand Canyon in May of 1971.
• 52: Between Clear Creek and Phantom Ranch; early, May 9, 1971 Photo of a lunch stop above Hance Rapid along the Colorado River near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1971.
• 53-54: Hitchhikers just below Clear Creek, May 9, 1971 Photo of a lunch stop at Hance Rapid along the Colorado River during the Aaron Belnap Ross river trip through the Grand Canyon in May of 1971.
• 55: Below Phantom [ranch] and above Bass, May 9, 1971 Photo of campers in the rain at Hance Rapid along the Colorado River near the upper end of the Grand Canyon, during the Aaron Belnap Ross river trip in May of 1971.
• 56-57: Between Phantom [ranch] and Bass, May 9, 1971 Photo of a scene along Clear Creek, a side tributary to the Colorado River east of Bright Angel in the Grand Canyon, visited by Aaron Belnap Ross's party in May of 1971.
• 58: Bass cable[?], May 9, 1971 Photo of a scene along Clear Creek, a side tributary to the Colorado River east of Bright Angel in the Grand Canyon, visited by Aaron Belnap Ross's party in May of 1971.
• 59: Bass asbestos mine ¾ mile up Hakatai Canyon, May 10, 1971 Photo of a scene along Clear Creek, a side tributary to the Colorado River east of Bright Angel in the Grand Canyon, visited by Aaron Belnap Ross's party in May of 1971.
• 60: Housekeeping and Bass asbestos mine, May 10, 1971 Photo of a scene along Clear Creek, a side tributary to the Colorado River east of Bright Angel in the Grand Canyon, visited by Aaron Belnap Ross's party in May of 1971.
• 61: Deepest hole at bass asbestos mine with bottle left by Park S[ervice?], Brian Gottfriedsen[?], May 10, 1971 Photo of a scene along Clear Creek, a side tributary to the Colorado River east of Bright Angel in the Grand Canyon, visited by Aaron Belnap Ross's party in May of 1971.
• 62: Implements at Bass asbestos mine, May 10, 1971 Photo of a scene along Clear Creek, a side tributary to the Colorado River east of Bright Angel in the Grand Canyon, visited by Aaron Belnap Ross's party in May of 1971.
• 63: Looking down Hakatai Canyon from Bass Mine, May 10, 1971 Photo of Aaron Belnap Ross's party camping along Clear Creek, a side tributary to the Colorado River east of Bright Angel in the Grand Canyon, in May of 1971.
• 64-65: Tapeats Creek. Paul and John sampling fish, May 11, 1971 Photo of Aaron Belnap Ross's party camping along Clear Creek, a side tributary to the Colorado River east of Bright Angel in the Grand Canyon, in May of 1971.
• 66: Tapeats Creek, May 11, 1971 Photo of a scene along Clear Creek, a side tributary to the Colorado River east of Bright Angel in the Grand Canyon, visited by Aaron Belnap Ross's party in May of 1971.
• 67: Kanab Creek, May 11, 1971 Photo of Aaron Belnap Ross's party camping along Clear Creek, a side tributary to the Colorado River east of Bright Angel in the Grand Canyon, in May of 1971.
• 68: Up Kanab Creek approximately 1 mile, May 11, 1971 Photo of a scene along the Colorado River in the Grand Canyon, Arizona, between Clear Creek and Phantom Ranch, visited by Aaron Belnap Ross's party in May of 1971.visited by
• 69: Up Kanab Creek, May 11, 1971 Photo of the Aaron Belnap Ross's party meeting backpackers in the Grand Canyon near Clear Creek, May of 1971.
• 70: Up Kanab Creek ½ mile; seep, May 11, 1971 Photo of a scene along the Colorado River, between Phantom Ranch and Bass Camp, during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1971.
• 71: Kanab Creek, May 11, 1971 Photo of a scene along the Colorado River, between Phantom Ranch and Bass Camp, during the Aaron Belnap Ross river trip through the Grand Canyon in the spring of 1971.
• 72: Orval Winkler Hansen, May 13, 1971 Photo of a scene along the Colorado River (perhaps near Bass camp and Shinumo Creek), during the Aaron Belnap Ross river trip through the Grand Canyon in May of 1971.
• 73: Havasu 1 mile upstream. Art and Doris Halmgren[?], May 13, 1971 Photo taken at the Bass asbestos mine west of Grand Canyon Village, visited by Aaron Belnap Ross in May of 1971.
• 74: Havasu 2 miles upstream, May 13, 1971 Photo taken at the Bass asbestos mine west of Grand Canyon Village, visited by Aaron Belnap Ross in May of 1971.
• 75: Havasu Creek, 2 miles up. memillis[?] cordialis, May 13, 1971 Photo taken at the Bass asbestos mine west of Grand Canyon Village, visited by Aaron Belnap Ross in May of 1971.
• 76: Havasu Creek 2 ½ miles up; moss at bottom and pool at crossing, May 13, 1971 Photo taken at the Bass asbestos mine west of Grand Canyon Village, visited by Aaron Belnap Ross in May of 1971.
• 77-80: Havasu Creek just above Beaver Falls, May 13, 1971 Photo of a view down Hakatai Canyon from the Bass asbestos mine in the Grand Canyon, seen during the Aaron Belnap Ross river trip in May of 1971.
• 81: Havasu Creek approx. 1 mile above Beaver Falls, May 13, 1971 Photo of two men wading inTapeats Creek in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 82083: Havasu Creek 1 to 2 miles above Beaver Falls, May 13, 1971 Photo of two men wading inTapeats Creek in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 84-85: Havasu Creek, 2 miles above Beaver Falls. J-[?] Grass and maidenhair fern, May 13, 1971 Photo of Tapeats Creek north of the Colorado River in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 86-88: Havasu Creek 2 ½ miles above Beaver Falls, May 13, 1971 Photo of Kanab Creek north of the Colorado River in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 89: Havasu Creek just above Beaver Falls, May 13, 1971 Photo of Kanab Creek north of the Colorado River in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 90-92: On trail just above and over Beaver Falls, May 13, 1971 Photo of Kanab Creek north of the Colorado River in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 93-95: Havasu Creek at junction with Colorado River, May 13, 1971 Photo of Kanab Creek north of the Colorado River in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 96: Campsite Mile 158 ½ just below Havasu Creek, May 14, 1971 Photo of Cataract (or Havasu) Creek above Beaver Falls in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 97: Looking downstream Mile 158 ½, May 14, 1971 Photo of Cataract (or Havasu) Creek two miles above the Colorado River in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 98: Mile 158 ½ just below Havasu Creek, May 14, 1971 Photo of Cataract (or Havasu) Creek two miles above the Colorado River in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 99: Campsite Mile 158 ½ just below Havasu Creek, A.M., May 14, 1971 Photo of Cataract (or Havasu) Creek two miles above the Colorado River in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 100: Mile 158 ½ just below Havasu, early A.M., May 14, 1971 Photo of Cataract (or Havasu) Creek above Beaver Falls in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 101: Downstream Mile 158 ½, May 14, 1971 Photo of Cataract (or Havasu) Creek above Beaver Falls in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 102: Looking downstream Mile 158 ½, May 14, 1971 Photo of Cataract (or Havasu) Creek above Beaver Falls in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971
• 103: Looking upstream Mile 158 ½, May 14, 1971 Photo of Cataract (or Havasu) Creek above Beaver Falls in the Grand Canyon, during a river trip by Aaron B. Ross in May of 1971

• 1-3: Scenery, view from the river
• 4: Just above Vasey's [Paradise], Aug. 18, 1971
• 5: Stanton's Cave, Marble Canyon, 18 Aug 71
• 6: Rock Slide, Marble Canyon
• 7: Inner Gorge, raining
• 8: Inner Gorge, cloudy
• 9: Inner Gorge
• 10-11: Inner Gorge downstream from just below Crystal Rapid
• 12: Crystal Rapid looking up
• 13: Crystal Rapid [_?_ _?_]
• 14: Just below Crystal [rapid]
• 15-16: Downstream from Crystal Rapid, 20 Aug 71
• 17-18: "Old Ironsides," Bass [boat named ROSS WHEELER]
• 19-20: Elves Chasm, 22 Aug 71
• 21: Elves Chasm, Alta, JoAnn, and Merlin
• 22-23: Elves Chasm
• 24: Fish hook cactus, Tapeats [creek]
• 25: Cactus garden, Tapeats [creek]
• 26: Engleman cactus, Tapeats [creek]
• 27: Beginning cloudburst
• 28: Rain
• 29: Extreme rain
• 30: Small falls
• 31: Tapeats [creek] in flood
• 32: Middle of cloudburst
• 33: Tapeats [creek] in flood
• 34: Side canyon runoff
• 35: Falls on Redwall [limestone]
• 36: Falls over Bright Angel [shale]
• 37: Falls over [_?_]
• 38: Blue sky again
• 39: Thunder river

• 1: Sunset
• 2-4: Diamond Creek

• 1-20: Marble Canyon

• 1-29: Flood in Havasu Canyon, featuring waterfalls and muddy water

• 1 : Photo of an alcove located near Rainbow Bridge, visited during one of Aaron Belnap Ross's river trips in the late 1960s or early 1970s.
• 2 : Photo of hikers in southern Utah (probably Glen Canyon region), during one of Aaron Belnap Ross's river trips in the late 1960s or early 1970s.
• 3 : Photo of an unidentified plant seen in Glen Canyon during the Aaron Belnap Ross river trip in May of 1964.
• 4 : Photo of a view of part of the Grand Canyon from the South Rim, visied by Aaron Belnap Ross in the late 1960s or early 1970s.
• 5 : Photo of a view of Lava Falls on the Colorado River during one of Aaron Belnap Ross's Grand Canyon river trips in the late 1960s or early 1970s.
• 6 : Photo of someone swimming in the Colorado River during one of Aaron Belnap Ross's river trips in the late 1960s or early 1970s.
• 7 : Photo of the Grand Canyon above Sheerwall Rapid on the Colorado River, during one of Aaron Belnap Ross's river trips in the late 1960s or early 1970s.
• 8 : Photo of a view of Vaseys Paradise, an oasis about 32 miles down the Colorado River from Lees Ferry. Visited by Aaron B. Ross during one of his river trips in the 1960s or 1970s
• 9 : Photo of a river party at Vaseys Paradise, an oasis about 32 miles down the Colorado River from Lees Ferry. Visited by Aaron B. Ross during one of his river trips in the 1960s or 1970s
• 10 : Photo of a view of Vaseys Paradise, an oasis about 32 miles down the Colorado River from Lees Ferry. Visited by Aaron B. Ross during one of his river trips in the 1960s or 1970s
• 11 : Photo of a view of Vaseys Paradise, an oasis about 32 miles down the Colorado River from Lees Ferry. Visited by Aaron B. Ross during one of his river trips in the 1960s or 1970s
• 12 : Photo of a view of Vaseys Paradise, an oasis about 32 miles down the Colorado River from Lees Ferry. Visited by Aaron B. Ross during one of his river trips in the 1960s or 1970s
• 13 : Photo of a view of Vaseys Paradise, an oasis about 32 miles down the Colorado River from Lees Ferry. Visited by Aaron B. Ross during one of his river trips in the 1960s or 1970s
• 14 : Photo of a scene along the Colorado River (probably in the Grand Canyon) during one of Aaron Belnap Ross's river trips in the late 1960s or early 1970s.
• 15 : Photo of a scene along the Colorado River during one of Aaron Belnap Ross's river trips in the late 1960s or early 1970s.
• 16 : Photo of a scene along the Colorado River during one of Aaron Belnap Ross's river trips through the Grand Canyon in the late 1960s or early 1970s.
• 17 : Photo of an unidentified stream, probably a tributary to the Colorado River in the Grand Canyon region, seen by Aaron B. Ross in the late 1960s or early 1970s
• 18 : Photo of a scene along the Colorado River during one of Aaron Belnap Ross's river trips in the late 1960s or early 1970s.