This map was drawn by Ado Hunnius at the request of Major General J. M. Schofield. It was compiled under the direction of 1st Lieutenant Henry Jackson of the 7th U.S. Cavalry in March 1870. It includes the location of forts in Kansas, southern Nebraska, eastern Colorado, and northern portions of Indian Territory (Oklahoma), as well as noting natural features (rivers, hills, etc.), trails, and Indian reservations.
Kansas Historical Society
Map of Kansas, with parts of neighboring states and territories