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.
The Donald B. Zobel Collection of Historic Forestry and Vegetations Maps consist of maps assembled and created by Zobel for his research in forest ecology and for teaching; the bulk of the maps depict forests in Oregon and northern California. Zobel was a faculty member in the Oregon State University Department of Botany and Plant Pathology from 1968 until 2003.