This site was the camp of the first authorized military expedition into the Black Hills. On September 12, 1857, Lt. G. K. Warren of the U.S. Topographical Engineers and his party camped here and erected a log corral, seventeen years before the famous Custer Expedition. On June 3, 1875, the expedition headed by Professor Walter P. Jenney, under military escort commanded by Col. R. I. Dodge of Ft. Laramie, camped on the location of Lt. Warren's camp and corral. A stockade was erected and became known as Camp Jenney. The stockade served as a stopover for gold seekers during the winter 75–76 and later became a stage station. The stockade is now located by the Anna Miller Museum.