Fort Union Trading Post National Historic Site


Between 1828 and 1867, Fort Union was the most important fur trade post on the Upper Missouri River. Here, the Assiniboine and six other Northern Plains Tribes exchanged buffalo robes and smaller furs for goods from around the world, including cloth, guns, blankets, and beads. A bastion of peaceful coexistence, the post annually traded over 25,000 buffalo robes and $100,000 in merchandise.

Located on North Dakota Highway 1804 right at the Montana and North Dakota state line. From Williston, ND, approximately 25 miles to the southwest via ND Highways 2 & 1804. From Sidney, MT, approximately 25 miles to the northeast, via MT Highways 200 & 58. Commercial flights and rental cars are available in both Williston, ND and Sidney, MT. Amtrak passenger train service and rental cars are available in Williston, ND.

  • Guided Tours
  • Self-Guided Tours - Walking
  • Living History
  • Reenactments
  • Junior Ranger Program
  • Park Film
  • Museum Exhibits
  • Shopping
  • Bookstore and Park Store
  • Gift Shop and Souvenirs

  • Archeology
  • Commerce
  • Trade
  • Forts
  • Native American Heritage
  • Reconstruction

River View of Fort Union

View from Missouri River bottoms of Southwest bastion

Viewing Fort Union Trading Post from the Missouri River bottoms one can imagine how grandiose the site would appear to weary steamboat travelers.

Twilight View of the Bourgeois House

Candles illuminate the Bourgeois House porch at dusk

Volunteer reenactors relax on the Bourgeois House porch

Fort Union Trading Post Courtyard

Courtyard of Fort Union Trading Post with Bourgeois House, Tipis and US Flag

Ranging from employee housing, workshops, storage warehouses, domestic animal pens and horse corrals, the courtyard housed the world at Fort Union.

Fort Union and the Missouri River Valley

View of Fort Union and the Missouri River looking south

Visitors hiking the scenic Bodmer Trail experience a historical view of Fort Union, and the same view painted by Karl Bodmer in 1833.

Tipis fill the fields around at Fort Union

White canvas tipis in grassy area, Fort in background.

During the height of the spring trade season camps from various Upper Missouri Tribes would fill the plateau around Fort Union.