Theodore Roosevelt
Nature & History Association


Supporting North Dakota's National Parks since 1951!

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Our Mission
Theodore Roosevelt Nature and History Association (TRNHA), a nonprofit organization, exists to assist and support Theodore Roosevelt National Park, Knife River Indian Villages National Historic Site, and Upper Souris National Wildlife Refuge.  Proceeds from our retail operations, memberships, and donations support the educational, interpretive, and scientific research programs to enhance the experience of park visitors.



What is a Cooperating Association
Cooperating associations developed in National Park Service history in response to visitor needs for guides, leaflets, pictures, maps, and other interpretive literature not available through the use of federal funds. Today there are more than 60 associations serving over 400 public land units of the National Park Service, Bureau of Land Management, U.S. Forest Service, and U.S. Fish and Wildlife. 

Event Calendar

November 10th - Hunter's Feed in Medora

November 23rd - Visitor Centers closed for Thanksgiving



Join our Board of Directors!


Store Hours
Theodore Roosevelt NP
South Unit - 8:00 - 4:30 MT

Painted Canyon -closed for season

North Unit - 9:00 - 5:00 CT Fri to Mon
Knife River Indian Villages NHS
8:00 - 4:30 CT
Upper Souris NWF
Mon-Fri 8:00 - 4:30 CT