1927. United States. Bureau of Public Roads. Shows various types of federal roads, national forests, parks, monuments and military reservations. Pavement types shown by letters.; "Data correct... The Bureau (Washington, D.C).
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1926. United States. Bureau of Public Roads. Shows Federal Aid Highway System, portions of System improved and under construction and national forests.; "Published in accordance with Act of Co... U.S. Geological Survey (Washington, D.C).
1927. United States. Bureau of Public Roads. Base map from U.S. Geological Survey state map.; "Data corrected to Dec. 31, 1927." 116 x 91 centimeters, on sheets 79 x 55 centimeters Scale 1:500... The Bureau (Washington, D.C).
1927. United States. Bureau of Public Roads. Base map from U.S. Geological Survey state map.; "Data corrected to Dec. 31, 1927." on sheets 79 x 56 centimeters Scale 1:760,320; 1 inch = 12 mile... The Bureau (Washington, D.C).