Providing support, services, and educational merchandise to enhance visitor experience and enjoyment through historical, scientific, and educational activities in Theodore Roosevelt National Park and Knife River Indian Villages National Historic Site.

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Join TRNHA and Show Your Support for North Dakota's Public Lands

  • TRNHA Membership

    Become a Member

    Become a member today and help TRNHA support North Dakota's National Parks. Proceeds from sales of membership donations support Theodore Roosevelt National Park and Knife River Indian Villages National Historic Site.

    Purchase Your Membership 
  • Make a Donation

    Donate

    Established in 1951, Theodore Roosevelt Nature and History Association (TRNHA), a 501c3 not-for-profit, is a cooperating association developed by the National Park Service to support the educational, scientific, and historic activities of Theodore Roosevelt National Park and Knife River Indian Villages National Historic Site.

    Donate Now 
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    Volunteer

    Volunteering for Theodore Roosevelt Nature and History Association is a way to show your support and to assist us in meeting our mission of supporting Theodore Roosevelt National Park and Knife River Indian Villages National Historic Site.

    Volunteer Opportunities 
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