1926. United States. Bureau of Public Roads. Shows Federal Aid Highway System, portions of System improved and under construction, national parks, monuments, and military reservations.; "Publi... U.S. Geological Survey (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 parks.; "Data corrected to Dec. 31, 1926." sheets... U.S. Geological Survey (Washington, D.C).
1926. United States. Bureau of Public Roads. Shows Federal Aid Highway System, portions of System improved and under construction and national parks.; "Data corrected to Dec. 31, 1926." sheets... U.S. Geological Survey (Washington, D.C).
1926. United States. Bureau of Public Roads. Date corrected to Dec. 31, 1926.; "Base map from U.S. Geological Survey State map."; "Published in accordance with Act of Congress approved Nov. 9,... Dept. of Agriculture, Bureau of Public Roads (Washington, D. C).
1926. United States. Bureau of Public Roads. Pavement types indicated.; "Data corrected to Dec. 31, 1926." sheets 55 x 79 centimeters Scale 1:500,000 General Map Collection. Bureau of Public Roads (Washington, D.C.?).
1926. United States. Bureau of Public Roads. Shows various types of federal roads, pavement types shown by letters.; "Published in accordance with Act of Congress approved Nov. 9, 1921, creati... Bureau of Public Roads (Washington, D. C).
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).