Cartographic Details: Scale 1:760,320. 12 miles to one in.In: U.S. 33d Cong., 2d sess., 1854-1855. Senate ex. doc. -- no. 1, map 29. -- (Serial set ; 748).Includes table showing progress of government road construction. 46 x 32 centimeters Scale 1:760,320. 12 miles to one inch Minnesota Transportation Maps