1926. United States. Forest Service. Polyconic projection. 28 x 26 in Scale approximately 1:253,440 General Map Collection. U.S. Forest Service (Washington).
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1916. United States. Forest Service. California Region. Relief shown by hachures and spot heights.; Text on verso.; Panel title: Recreation map, Plumas National Forest, information for mountain travelers... U.S. Forest Service (Washington).