🏆🏆🏆🏆 Powder River Fort — Military post on the Powder River (1865) — established during the Powder River Expedition against the Lakota and Northern Cheyenne
Fort Reno was established in 1865 on the Powder River as part of the Powder River Expedition — one of the most contested military campaigns of the Indian Wars. The Powder River country was the heart of Lakota and Northern Cheyenne hunting territory — rich with buffalo herds that sustained their way of life. The US Army’s attempt to build forts along the Bozeman Trail through this territory triggered Red Cloud’s War. Fort Reno was one of three forts (along with Fort Phil Kearny and Fort C.F. Smith) that Red Cloud’s coalition forced the US to abandon in 1868.
Visitor Information
| Detail | Information |
|---|---|
| Location | Johnson County, WY |
| Entry Fee | Free |
| Year | 1865 — Powder River Expedition! |
| Result | Forced abandoned by Red Cloud! |
About Fort Reno
Fort Reno in Johnson County was the first of three Bozeman Trail forts built in 1865 to protect gold miners traveling to Montana — directly through Sioux and Cheyenne hunting grounds. Red Cloud’s War (1866-1868) — the only war the U.S. Army definitively lost against Native Americans — forced the Army to abandon all three Bozeman Trail forts. Fort Reno was burned by the Lakota after the Army left.
Things to Do
Visiting the fort site on the Bozeman Trail, viewing interpretive markers about Red Cloud’s War, exploring the Powder River country, and studying the only war Native Americans won against the U.S. Army.
Insider Tips
Bozeman Trail: Fort Reno (1865) was the first military post on the Bozeman Trail — the controversial shortcut to Montana goldfields that crossed Lakota hunting grounds. Pro tip: Red Cloud’s War (1866-1868) was the only war where Native Americans forced the US to negotiate peace on their terms — the Bozeman Trail forts were abandoned. Treaty: The 1868 Fort Laramie Treaty guaranteed the Black Hills to the Sioux.
Best Time to Visit
Summer: Access via dirt roads. Fall: Powder River country. Year-round: Site markers. Spring: Green prairie backdrop.
Frequently Asked Questions
What was Red Cloud’s War?
Red Cloud’s War (1866-1868) was the most successful Native American armed resistance against the US military. Oglala Lakota chief Red Cloud organized attacks on Bozeman Trail forts until the government agreed to close the trail and abandon the forts. The resulting 1868 Treaty of Fort Laramie guaranteed the Black Hills “forever” — a promise broken 6 years later when gold was discovered.
Make it a road trip: Pair a visit with Edness K. Wilkins State Park (elsewhere in the state) or Fort Phil Kearny (elsewhere in the state).
Wildlife & Nature
Fort Reno — an 1865 Bozeman Trail fort — part of the chain of forts built to protect travelers during Red Cloud’s War. The fort’s Powder River, prairie, and sagebrush support pronghorn, mule deer, and sage grouse.
Nearby Attractions
Sussex — nearby. Johnson County — surrounding. Bighorn Mountains — to the west.
Park Location
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