The Bureau of Land Management Maps of Oregon consist of maps published by the Bureau of Land Management (BLM) for the public as guides for outdoor recreation and maps prepared by the BLM for management of forest lands, primarily in western Oregon. The Bureau of Land Management was formed in 1946 by the merger of the General Land Office and the United States Grazing Service. BLM lands in Oregon are primarily forest lands in western Oregon and grazing and range lands in eastern Oregon.
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.