1. Minnesota route, the shortest and best to the Idaho gold mines Maps University Of Minnesota Public content 1864. Morris, Chas. A. F. (Charles A. F.), 1827-1903. (W 126°--W 86°/N 50°--N 38°). Relief shown by hachures and spot heights. "Entered according to act of Congress in the year 1864 by D.D. Merrill... D.D. Merrill (St. Paul).