Warren, G. K. (Gouverneur Kemble), 1830-1882Relief shown by hachures.; Shows route of government explorations from 1820 to 1855.39 x 49 centimetersJPEGUMN_ALMA:9928040440001701engGPO (Washington)PublicSection of map compiled in P.R.R. Office with additions designed to illustrate Lt. Warrens report of military reconnaissances in the Dacota Country 1855MapsUnited States1856University of Minnesota