Fort Fetterman (1867-1882) - Established as a military post on 19 Jul 1867 by Major William McEnery Dye (Cullum 1610), with Companies A, C, H, and I, 4th U.S. Infantry. On 31 Jul 1867 the post was named Fort Fetterman in honor of Captain William J. Fetterman who was killed along with 80 men in the Fetterman massacre near Fort Phil Kearny, 21 Dec 1866. The fort was needed as a major supply point for the army operating against the Indians.
Fort Fetterman History
Fort Casper was abandoned when Fort Fetterman was completed and its garrison moved into the new fort in Aug 1867. Fort Fetterman was excluded from the provisions of the 1868 Treaty of Fort Laramie, which resulted in the abandonment of all forts further to the north (Fort Reno (2), Fort Phil Kearny, and Fort C.F. Smith (1)). It became the northernmost military post in eastern Wyoming, and important in protecting the Bozeman Trail and other routes for settlers.
After the onset of the Black Hills War with the Lakota, Cheyenne, and Arapaho tribes, several major military expeditions passed through Fort Fetterman, including Maj. Gen. George Crook's Powder River Expeditions and Col. Ranald S. Mackenzie's 1876 campaign against Dull Knife.
Fort Fetterman is administered by the Wyoming Division of State Parks and Historic Sites. In the 1960's the Wyoming Historical Commission gained ownership of the historic site and restored the few existing buildings to their original historic appearance. In 1990 new exhibits were installed in the Bachelor Officer Quarters and the Ordnance Building. These interpret the extensive history of the site including the Native American, the Military Post, and Fetterman City.