Contact Us

By Mail
Fort Union Trading Post NHS
15550 Hwy 1804
Williston, ND 58801

By Phone
Headquarters/Visitor Center - (701) 572-9083

Maintenance Shop - (701) 572-0233

By Fax
701-572-7321

By Email
Email Us

Last updated: December 23, 2015

Contact the Park

Mailing Address:

15550 Highway 1804
Williston, ND 58801

Phone:

(701) 572-9083

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