battalion of the 18th Infantry, which was renamed the 27th United States Infantry Regiment in 1867, endured the routines of garrison life and the harsh winters and hot summers, occasionally skirmishing with hostile Indians and keeping the southern end of the Bozeman Trail open and passable. Abandonment In 1868 the Fort Laramie Treaty ended Red Cloud's War and essentially ceded the Powder River Country to the Lakota Sioux. Along with Forts C.F. Smith and Phil Kearny, Fort Reno was abandoned as a condition of the agreement. Shortly after the military left in August, the entire post was destroyed by fire ignited by Cheyenne warriors. During the Great Sioux War, Brigadier General George Crook's 883 men of the Big Horn Expedition returned to Fort Reno in March, 1876, finding only some adobe walls and building debris. Nevertheless, Crook used the site as a supply base for 15 days, leaving the expedition's wagons and Companies C, and I, of the 4th United States Infantry Regiment, under the overall command of Captain Edwin M. Coates. On March 5 Crook's command fought Indian warriors in the Fort Reno Skirmish directly across the river from the abandoned post. Later that year, the army would again use the site as a supply base, eventually establishing the Fort Reno Depot several miles to the south. In the 1880s, soldiers buried in the post cemetery were reinterred in the Custer Battlefield National Cemetery near Crow Agency, Montana. Garrison August—October 1865 - 6th Michigan Volunteer Cavalry (4 Companies): Colonel James H. Kidd October 1865—April 1866 - 5th United States Volunteer Infantry (2 Companies): Captain George W. Williford April—June 1866 - 5th United States Volunteer Infantry (2 Companies): Captain George M. Bailey June—September 1866 - 18th United States Infantry (3 Companies): Captain Joseph L. Proctor September 1866—August 1868 - 27th United States Infantry (3 Companies): Captain Joseph L. Proctor March 1876 - 4th United States Infantry (2 Companies): Captain Edwin M. Coates Fort Reno today The parade ground and surrounding area has generally returned to a natural prairie sod cover. The site, approximately northeast of Sussex, Wyoming, was listed on the National Register of Historic Places on March 28, 1970. There is a large stone monument and several interpretive signs marking the site that are accessible by a gravel road. Other Fort Reno's Two other army posts were also named Fort Reno—one Fort Reno Park in the defenses of Washington