The
fort was designed to house ten companies of infantry and cavalry. The
troops were charged with monitoring the activities of the region's many Indian groups,
patrolling Montana's border with Canada, stopping bootleggers and gunrunners and
protecting the state's settlers. In its heyday, nearly 750 officers, enlisted men, and
civilians called Assinniboine home.
Montana's grandest military post. The fort was the pioneer outpost of
north central Montana, the frontier home of regiments of American infantry and cavalry,
and the site of 1st Lt. John J. Pershing's (later General) early field
assignment. Its surviving buildings stand today as a monument to our state's exciting past
-- to the opening of the frontier.