The park's South Unit is 130 miles west of Bismarck and just north of Medora (exit 24 or 27 on I-94). The North Unit is 15 miles south of Watford City. From I-94, take exit 42 (Belfield); then you must continue north on U.S. 85 another 50 miles to the North Unit Entrance. The park also includes Theodore Roosevelt's Elkhorn Ranch, which is located between the North and South Units, but visitors should ask rangers about road conditions before attempting to go there.

The Nearest Airports -- About 130 miles east of the park is Bismarck Airport (tel. 701/355-1808;, served by Allegiant Air, Delta, and United Express airlines, with service to Chicago, Denver, Minneapolis, Phoenix, and Las Vegas, plus Avis, Enterprise, and Hertz car rentals. Dickinson-Theodore Roosevelt Regional Airport (tel. 701/483-1062; is 35 miles from Medora and is served by Great Lakes Airlines, with service to Denver, and you can rent a car from Budget.

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.