United States. Public Roads AdministrationCartographic Details: Scale 1:250,000. approximately 1 in. to 4 miles ; Modified polyconic projection (W 97‚Å∞15 π--W 89‚Å∞30 π/N 49‚Å∞22 π--N 43‚Å∞30 π). Published in accordance with Act of Congress approved November 9, 1921, creating the Federal Aid Highway System; highways corrected to August 1, 1940. Each sheet has an index map. Inset on sheet 9, 1:125,000: Minneapolis-St. Paul and vicinity.each section 58 x 83 centimetersJPEGUMN_ALMA:9945895940001701engThe Survey (Washington D.C.)PublicMinnesota transportation map : Highways, railroads, canals, air lanes, and dredged channelsMapsMinnesota1940University of Minnesota