The Forest Type Maps of Oregon document forest composition at the county, region, and statewide level in Oregon from 1900 to the mid-1950s. The maps were prepared by the U.S. Forest Service and the U.S. Geological Survey. The earliest maps (1900-1901) were published in color. The maps depict the type and quality of timber in a given area as well as non-forested and de-forested land.
The National Forests in Oregon Maps consists of maps of all the national forests in Oregon prepared by the U.S. Forest Service. The collection includes maps of the entire forests, ranger districts, and wilderness areas. The maps depict key landscape features, forest roads, campsites, ranger stations and lookouts, recreational sites, and main roads near each forest. Forest reserves were established in Oregon in the early 1890s; many of these reserves became National Forests in the early 1900s after the establishment of the U.S. Forest Service.