1929. Geological Survey (U.S.). Edition of 1921, reprinted 1929."; "National Forest names and boundaries not corrected to date."; "Compiled in 1920 and 1921. 81 x 127 centimeters ... Geological Survey (Washington, D.C).
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1929. Geological Survey (U.S.). Includes distance table.; Text on verso. 79 x 49 Centimeters Scale approximately 1:253,440 General Map Collection. The Service (Washington, D.C).