Relief shown by hachures.; Covers Minnesota Territory, including Pembina, and the Yankton, Yanktonnan and Chippewa areas, with Missouri River and White Earth River as western boundary.; Shows counties, townships, Indian tribes, proposed route of the Pacific Railroad, etc. Also shows counties such as Carver, Faribault, Freeborn, and Steele created in 1855; shows Cass County before losing territory to Todd, Stearns, Davis, and Wright counties in Feb. 1855.; "Entered according to Act of Congress in the year 1855, by J.H. Colton & Co. ..."; Prime meridians: Greenwich and Washington.; Includes note.; In bottom right margin: No. 49. 30 x 31 Centimeters Scale approximately 1:2,600,000 General Minnesota Maps