Bicycling

Bikes are allowed on interior roads but not off-road. Cyclists on the multiuse Maah Daah Hey Trail aren't allowed on the portions of the trails within the park.

Outfitters

Dakota Cyclery Mountain Bike Adventures. This company rents bikes and provides shuttle service to both units of the park and guided tours of the Maah Daah Hey Trail. 365 Main St., Medora, North Dakota, 58645. 701/623–4808; 888/321–1218. From $25. Memorial Day–Sept..