Fort Fetterman was a wooden fort constructed in 1867 by the United States Army on the Great Plains frontier in Dakota Territory, approximately 11 miles northwest of present-day Douglas, Wyoming. It was located high on the bluffs south of the North Platte River. It served as a major jumping-off point for the start of several major military expeditions against warring Native American tribes and soldiers there helped protect pioneers on the Bozeman Trail. It is listed on the National Register of Historic Places.