In the states adjoining Wyoming were a number of forts that played a part in the military history of the state. Among these may be named Fort Hall, Idaho, Uinta and Thornburg, Utah; Sedgwick (first known as Fort Rankin), Colorado; C. F. Smith and Custer, Montana and Robinson and Sidney in Nebraska.
- Camp Auger
- Fort Bridger
- Camp Carlin
- Fort Casper
- Fort Connor
- Fort Fetterman
- Fort Halleck
- Fort Philip Kearny
- Fort Laramie
- Fort Mackenzie
- Fort McKinney
- Fort Reno
- Fort D. A. Russell
- Fort Sanders
- Fort Stambaugh
- Fort Fred Steele
- Fort Walbach
- Fort Washakie
Source: History of Wyoming, Volume 1, by I. S. Bartlett, Chicago, The S. J. Clarke Publishing Company, 1918
