The Grandest Fort on the Upper Missouri River

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 Indian 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.

Rendezvous reenactors pose in front of the Bourgeois House.

Fort Union Rendezvous

Rendezvous living history reenactors and fort volunteers pose in front of the Bourgeois House.

View of active archeological digs.

Unearthing the Past, Discovering Today

How was the fort built and from what materials? Archeologists needed to unearth the answers before the fort could be accurately rebuilt.

Karl Bodmer painting of Fort Union

Historic Overview of Fort Union

Built at the request of the Assiniboine nation, Fort Union quickly emerged as the Upper Missouri's longest lasting trading post.

Last updated: March 17, 2018

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15550 Highway 1804
Williston, ND 58801


(701) 572-9083

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