Theodore Roosevelt
Nature & History Association

Supporting North Dakota's National Parks since 1951!

About TRNHA Park Info Support TRNHA Shop Online Employment Newsletter Contact TRNHA
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

April 15 -23 National Park Week - check your park for details!

April 16 - Photo Contest
Click here to learn more!

June 4 - Annual Birdwalk

2017 Picture Yourself in TRNP Photo Contest
Click here for the Official Rules and Submission Form!

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

Painted Canyon -Closed

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