Fort Union Trading Post National Historic Site
A reconstructed Upper Missouri trade post makes commerce, diplomacy, labor, and cultural negotiation visible where the Yellowstone meets the Missouri.
Artwork inspired by Karl Bodmer
Fort Union was the American Fur Company’s principal Upper Missouri post, not a United States Army fort. Assiniboine and other northern Plains nations brought bison robes and other goods into a system that joined kinship and diplomacy to river transport, manufactured goods, credit, and distant markets.
The reconstructed palisade, stone bastion, Trade House, and Bourgeois House let visitors compare who entered which spaces and under what terms. Summer interpretation in the Trade House and the Bodmer Overlook Trail add two useful scales: face-to-face exchange inside the post and the river landscape recorded by Karl Bodmer in 1833.
- What it was
- Commercial fur-trade post, not an Army fort
- Key relationship
- Trade and diplomacy with northern Plains nations
- Landscape view
- Bodmer Overlook Trail
Quick guide
- Begin at the gate
- Track who controlled movement through each space
- Add in summer
- Trade House interpretation and the river overlook
Follow a trade encounter from gate to river
- Correct the first assumption
- Treat the palisade as commercial infrastructure rather than proof of an Army garrison. Fort Union depended on recurring trade and diplomatic relationships with Native nations.
- Compare the rooms
- Move from the gate and courtyard to the Trade House and Bourgeois House. Ask who could enter, where negotiation occurred, and how rank, gender, language, and kinship shaped exchange.
- Interrogate the goods
- Use robes, beads, metal tools, cloth, weapons, and food to trace two-way demand. Avoid reducing Native participants to suppliers in a one-directional European market.
- Recover the wider landscape
- Walk the Bodmer Overlook Trail if conditions allow and compare the modern confluence with the viewpoint Bodmer painted in 1833. River geography explains why the post existed here.
Good to know
Fort Union’s defensive-looking walls enclosed a commercial and diplomatic post. Its success depended on relationships with Assiniboine and other northern Plains nations, not on an Army garrison.
Notice these
- Reconstructed palisade and Trade House
- Northern Plains trade diplomacy
- Missouri–Yellowstone confluence