1927. United States. Bureau of Public Roads. Maps shows U.S. Highways, National parks, monuments, military reservations, and forests, improved and under construction roads, and pavement types.... Dept. of Agriculture, Bureau of Public Roads (Washington, D.C).
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1927. United States. Bureau of Public Roads. Geological Survey (U.S.). Cartographic Details: Scale 1:500,000 ; Modified polyconic projection (W 97‚Å∞15 π--W 89‚Å∞30 π/N 49‚Å∞23 π--N 43‚Å∞30 π). Sheets numbered 23NE, 23... The Bureau (Washington D.C.).
1927. United States. Bureau of Public Roads. Date corrected to Dec. 31, 1927.; "Published in accordance with Act of Congress approved Nov. 9, 1921, creating the Federal Aid Highway System."; "... Dept. of Agriculture, Bureau of Public Roads (Washington, D.C).
1927. United States. Bureau of Public Roads. Base map from U.S. Geological Survey state map.; "Data corrected to Jan. 31, 1927." 70 x 137 centimeters, on sheets 79 x 55 centimeters Scale 1:760... 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." 96 x 72 centimeters, on sheets 55 x 79 centimeters Scale 1:500,... The Bureau (Washington, D.C).
1927. United States. Bureau of Public Roads. Data corrected to Dec. 31, 1927. sheets 56 x 79 centimeters Scale 1:500,000; 1 inch = 7.891 miles General Map Collection. Bureau of Public Roads (Washington, D.C).
1927. United States. Bureau of Public Roads. Shows various types of federal roads. Pavement types shown by letters.; "Data corrected to Dec. 31, 1927." 78 x 137 centimeters, sheets 79 x 55 cen... Bureau of Public Roads (Washington, D.C).
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... Bureau of Public Roads (Washington, D.C).
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).
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).