4.1 mi awayRoundup Group Horse Camp
Campground

Cottonwood Campground lies inside the park, about 5 miles from Medora, ND. It is the South Unit's only campground. Beginning May 1, 2026 all sites are by reservation at recreation.gov. Most sites are suitable for tents and RVs (no hookups). Cottonwood Campground fills to capacity each afternoon, mid-May through mid-September.
Enter the South Unit in Medora. Travel 5.5 miles on the scenic drive (East River Road). Cottonwood Campground is on the left. Stop at the campground’s self-registration kiosk for information on how to claim a campsite. If you have already made a reservation, you may go directly to your site.
Summers are warm (highs 80 - 100 degrees) with occasional thunderstorms and lots of wind. Winter is very cold with night time temperatures dropping well below zero.
Campground
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Today: Patchy Fog then Partly Sunny · wind 9 to 14 mph SE
Beginning May 1, 2026 all sites are by reservation at recreation.gov Group site reservations begin each season on the first business day in March at 8:00 am MST. The park cannot take reservations - they must all be made through recreation.gov. Click RESERVATIONS below or call recreation.gov at 1 (877) 444-6777.
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