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Fort Union Trading Post

Williston, North Dakota · Fort Union Trading Post National Historic Site

Dogs on a leash all year

Grounds and trails of a rebuilt fur-trading post on the Missouri. Dogs welcome; not in the Bourgeois House.

Source: National Park Service, Fort Union Trading Post National Historic Site. Checked October 29, 2026.

Follow the signs at the trailhead: parks can close areas to dogs for wildlife.

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Fort Union Trading Post National Historic Site: the rule in full

Pets are welcome on all trails and in fort buildings except the Bourgeois House visitor center.