Fort Ellis: Army Garrison at the Edge of Yellowstone
Near Bozeman, Montana
Three miles east of downtown Bozeman, just off the road toward the Bridger Mountains, a quiet agricultural flat conceals the footprint of Fort Ellis. Established in August of eighteen sixty-seven, the post was the Army's response to the violence that had claimed John Bozeman's life four months earlier and the ongoing pressure that Red Cloud's warriors were applying to the Bozeman Trail to the south.
Fort Ellis was never a major installation by the standards of the frontier Army. At its peak it garrisoned a few hundred soldiers, mostly infantry and cavalry, tasked with protecting the settlers of the Gallatin Valley and providing an eastern gateway to what would become Yellowstone National Park. When Congress established Yellowstone in eighteen seventy-two, Fort Ellis became the practical jumping-off point for expeditions into the new reserve. The Washburn-Langford-Doane Expedition of eighteen seventy, which produced some of the most influential early accounts of Yellowstone's geothermal wonders, departed from Fort Ellis, with a military escort under Lieutenant Gustavus Doane.
The post also served as a staging area for the Army's campaigns against the Nez Perce in eighteen seventy-seven. Colonel John Gibbon marched from Fort Shaw to join the pursuit of Chief Joseph's band as it fled toward Canada, eventually engaging the Nez Perce at the Battle of the Big Hole in August of that year.
By eighteen eighty-six, with the railroad having ended the isolation that had made a western garrison necessary, Fort Ellis was abandoned. The Army sold the land, and the buildings were dismantled or repurposed by ranchers. Almost nothing visible remains today. The site is marked by a state historical society sign near the creek bottom, an understated monument to a post that stood for less than twenty years but witnessed the decisive transformation of the northern Rockies.
