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<!DOCTYPE ead PUBLIC "+//ISBN 1-931666-00-8//DTD ead.dtd (Encoded Archival Description (EAD) Version 2002)//EN" "ead.dtd">
<ead>
  <eadheader countryencoding="iso3166-1" dateencoding="iso8601" langencoding="iso639-2b" repositoryencoding="iso15511" relatedencoding="dc" scriptencoding="iso15924">
    <eadid countrycode="US" url="http://archiveswest.orbiscascade.org/ark:/80444/xv99902" identifier="80444/xv99902" mainagencycode="US-uuml" encodinganalog="identifier">UUM_A0439.xml</eadid>
    <filedesc>
      <titlestmt>
        <titleproper encodinganalog="title">Guide to the Edward LaChapelle avalanche control video collection<date calendar="gregorian" era="ce" normal="1950/1970" type="inclusive"/></titleproper>
        <titleproper type="filing" altrender="nodisplay">LaChapelle (Edward) avalanche control video collection</titleproper>
        <author encodinganalog="creator">Finding aid prepared by Dean Pickett.</author>
      </titlestmt>
      <publicationstmt>
        <publisher encodinganalog="publisher">J. Willard Marriott Library Special Collections</publisher>
        <p>
          <extref href="https://www.lib.utah.edu/img/marriottLibraryLogo.png" show="embed" linktype="simple" actuate="onload"/>
        </p>
        <date encodinganalog="date" calendar="gregorian" era="ce" normal="2000">2000</date>
        <address>
          <addressline>295 South 1500 East</addressline>
          <addressline>Salt Lake City, Utah 84112</addressline>
          <addressline>Business Number: 801-581-8863</addressline>
          <addressline>special@library.utah.edu</addressline>
          <addressline>https://lib.utah.edu/collections/special-collections/index.php</addressline>
        </address>
      </publicationstmt>
    </filedesc>
    <profiledesc>
      <creation>This finding aid was produced using ArchivesSpace on <date>2025-11-14</date>.</creation>
      <langusage>
        <language langcode="eng" scriptcode="latn" encodinganalog="language">Finding aid written in English.</language>
      </langusage>
      <descrules>Finding aid based on DACS (Describing Archives: A Content Standard), 2nd Edition.</descrules>
    </profiledesc>
  </eadheader>
  <archdesc level="collection" relatedencoding="marc21" type="inventory">
    <did>
      <repository>
        <corpname encodinganalog="852$a">J. Willard Marriott Library Special Collections</corpname>
      </repository>
      <unittitle encodinganalog="245$a">Edward LaChapelle avalanche control video collection</unittitle>
      <origination>
        <persname authfilenumber="n 50039061" source="lcnaf" encodinganalog="100">LaChapelle, Edward R.</persname>
      </origination>
      <unitid countrycode="US" repositorycode="US-uuml" encodinganalog="099">A0439</unitid>
      <physdesc>
        <extent encodinganalog="300$a">19 16mm film</extent>
      </physdesc>
      <physdesc>
        <extent encodinganalog="300$a">10 vhs</extent>
      </physdesc>
      <physdesc>
        <extent encodinganalog="300$a">2 betacam</extent>
      </physdesc>
      <unitdate calendar="gregorian" era="ce" normal="1950/1970" type="inclusive" encodinganalog="245$f">1950-1970</unitdate>
      <abstract encodinganalog="5203_">The Edward LaChapelle avalanche control video collection (1950-1970) consists of films about avalanche danger, control and research at Utah ski areas and around the world. The collection also includes some of LaChapelle's home movies and other ski related footage. Edward LaChapelle was an American glaciologist, mountaineer, skier, author, and professor and a pioneer in Avalanche research, safety and forecasting. <extref linktype="simple" show="new" href="https://collections.lib.utah.edu/search?facet_setname_s=%22uum_avacr%22&amp;q=a0439" actuate="onrequest" role="text/html">Click here to request digitized materials from the collection</extref> or visit <extref linktype="simple" show="new" href="https://archivesspace.lib.utah.edu/repositories/3/resources/6318" actuate="onrequest" role="text/html">ArchivesSpace</extref> for a container level list of digitized materials.</abstract>
      <langmaterial>
        <language langcode="eng" encodinganalog="546">English</language>
      </langmaterial>
    </did>
    <bioghist encodinganalog="5450_">
      <p>Edward Randle "Ed" LaChapelle (1926-2007) was born in May 31 Tacoma, Washington. After studying physics and math at the University of Puget Sound and spending time at the Swiss Federal Institute for Snow and Avalanche Research he joined the United States Forest Service as a snow ranger in Alta, Utah in 1952.</p>
      <p> In addition to his two decades of work at Alta's avalanche center, LaChapelle was professor of atmospheric sciences and geophysics at the University of Washington from 1967 to 1982 and professor emeritus until his death. He also researched the subject at the Institute for Arctic and Alpine Research (INSTAAR) of the University of Colorado at Boulder from 1973-1977 and was involved in the 1968 development of the avalanche transceiver beacon. Edward LaChapelle died of a heart attack at Colorado's Monarch Ski Area on February 1, 2007.</p>
    </bioghist>
    <scopecontent encodinganalog="5202_">
      <p>The Edward LaChapelle avalanche control video collection (1950-1970) consists of films about avalanche danger, control and research. Several films document early avalanche control done at Alta, Utah. The collection also includes some of LaChapelle's home movies and other ski related footage.</p>
    </scopecontent>
    <arrangement encodinganalog="351">
      <p>The materials are arranged by format type.</p>
    </arrangement>
    <accessrestrict encodinganalog="506">
      <p>Audio-visual materials can be fragile and require specialized equipment to play back. For this reason, access to audio-visual materials is provided through digital copies, and it might take longer to provide access to items that are not yet digitized. Access to parts of this collection may be restricted under provisions of state or federal law, condition of the material, or by donor.</p>
    </accessrestrict>
    <relatedmaterial encodinganalog="5441_">
      <p>See also Edward LaChapelle's 35mm slides, located with the photograph collections, and his ex-wife Dolores LaChapelle's photograph collection (P0981).</p>
      <p>Forms part of the Ski and Snow Sports Archives (S.J. Quinney Outdoor Recreation Archives).</p>
    </relatedmaterial>
    <processinfo>
      <p>Processed by Dean Pickett in 2000.</p>
    </processinfo>
    <controlaccess>
      <controlaccess>
        <geogname authfilenumber="n 82047980" source="lcsh" encodinganalog="651">Alta (Utah)</geogname>
      </controlaccess>
      <controlaccess>
        <subject authfilenumber="sh 85010490" source="lcsh" encodinganalog="650">Avalanches</subject>
        <subject authfilenumber="sh 85010491" source="lcsh" encodinganalog="650">Avalanches--Control</subject>
        <subject source="lcsh" encodinganalog="650">Avalanches--Control--Utah</subject>
      </controlaccess>
      <controlaccess>
        <subject source="archiveswest" altrender="nodisplay" encodinganalog="690">Science</subject>
        <subject source="archiveswest" altrender="nodisplay" encodinganalog="690">Sports and Recreation</subject>
        <subject source="archiveswest" altrender="nodisplay" encodinganalog="690">Moving Images</subject>
      </controlaccess>
    </controlaccess>
    <dsc type="in-depth">
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Unidentified 16mm film</unittitle>
          <unitdate calendar="gregorian" era="ce">undated</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">1</container>
        </did>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Wasatch National Forest</unittitle>
          <unitdate calendar="gregorian" era="ce">1965</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">2</container>
        </did>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Wasatch National Forest</unittitle>
          <unitdate calendar="gregorian" era="ce">1965</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">3</container>
        </did>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Metamorphism and compression of wet snow</unittitle>
          <unitdate calendar="gregorian" era="ce">undated</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">4</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Filmed by Gorow Wakehame and Katutosi Tusima, instructors in low temperature science, Hokkaido University, Suppero, Japan.</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Footage of avalanche damage at Wallace, Idaho</unittitle>
          <unitdate calendar="gregorian" era="ce">undated</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">5</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Filmed by Monty Atwater for Disney. Footage of Honeycomb Ridge and cornice blast.</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Avalanche control out-takes</unittitle>
          <unitdate calendar="gregorian" era="ce">1963</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">6</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>1963 Material not used in film "Avalanche Control." Includes scenes of control work and various avalanche artillery such as the original muzzle-loading avalauncher.</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Alta</unittitle>
          <unitdate calendar="gregorian" era="ce">1957</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">7</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Various scenes of terrain skiers, avalanche control and snow tests. Material of historical interest.</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">San Juan Mountain avalanche scenes</unittitle>
          <unitdate calendar="gregorian" era="ce">1970s</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">8</container>
        </did>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Avalanche Control raw footage</unittitle>
          <unitdate calendar="gregorian" era="ce">1963</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">9</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Original footage used in Avalanche Control. Scenes of test skiing, fracture line profile, slope measurements, assorted weapons firing: recoilless rifle, 75mm howitzer, avalauncher (original model).</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Snow plowing and avalanche control scenes at Alta</unittitle>
          <unitdate calendar="gregorian" era="ce">1960s</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">10</container>
        </did>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Avalanche control uses publicity reel</unittitle>
          <unitdate calendar="gregorian" era="ce">undated</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">11</container>
        </did>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Avalanche control outtakes</unittitle>
          <unitdate calendar="gregorian" era="ce">1960s</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">12</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Various scenes of firing artillery, shell bursts and avalanche releases prepared to illustrate avalanche control on a television program.</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Avalanche dynamics</unittitle>
          <unitdate calendar="gregorian" era="ce">undated</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">13</container>
        </did>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Andre Roche avalanche footage</unittitle>
          <unitdate calendar="gregorian" era="ce">1960s</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">14-15</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Scenes of avalanche control with various weapons, avalanche releases, observation techniques and details involved in the taking a fracture line profile. Some of this footage was used in "Avalanche Control."</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Alta</unittitle>
          <unitdate calendar="gregorian" era="ce">circa 1957</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">16</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Various scenes of terrain, snowplowing, avalanche control. General historical interest.</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Japan snow technology</unittitle>
          <unitdate calendar="gregorian" era="ce">1972</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">17-18</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Directed by Ed LaChapelle.</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Alta scenes</unittitle>
          <unitdate calendar="gregorian" era="ce">1950s</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">16mm (photographic film size)</genreform>
          </physdesc>
          <container type="reel">19</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Home movies, footage of people firing guns, cornice kicking and some ski cuts.</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Avalanche awareness: a question of balance</unittitle>
          <unitdate calendar="gregorian" era="ce">undated</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">VHS</genreform>
          </physdesc>
          <container type="cassette">20</container>
        </did>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Avalanche control</unittitle>
          <unitdate calendar="gregorian" era="ce">undated</unitdate>
          <physdesc>
            <genreform encodinganalog="type" source="aat">VHS</genreform>
          </physdesc>
          <container type="cassette">21</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>A KSL news broadcast about an avalanche which took place in Little Cottonwood Canyon.</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Avalanche hazards part 2</unittitle>
          <unitdate calendar="gregorian" era="ce">1966</unitdate>
          <physdesc>
            <physfacet>Black and white</physfacet>
          </physdesc>
          <physdesc>
            <genreform encodinganalog="type" source="aat">VHS</genreform>
          </physdesc>
          <container type="cassette">22</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Produced by The United States Army. 27 minutes.</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">VHS duplicates</unittitle>
          <physdesc>
            <genreform encodinganalog="type" source="aat">VHS</genreform>
          </physdesc>
          <container type="cassette">23-29</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Dubs of items 2-22.</p>
        </scopecontent>
      </c01>
      <c01 level="item">
        <did>
          <unittitle encodinganalog="245$a">Betacam duplicates</unittitle>
          <physdesc>
            <genreform encodinganalog="type" source="aat">Betacam (TM)</genreform>
          </physdesc>
          <container type="cassette">30-31</container>
        </did>
        <scopecontent encodinganalog="5202_">
          <p>Dubs of items 2-16, 19.</p>
        </scopecontent>
      </c01>
    </dsc>
  </archdesc>
</ead>

