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Recreation Region: Sioux Ranger District

Reva Gap Campground

A campground with 8 sites located in the Slim Buttes Unit near the Castles National Natural Landmark, one of two on the Sioux Ranger District in the Custer Gallatin National Forest.  The campground is within commuting distance to Buffalo, SD. The campground is directly off of HWY 20, 20 miles south and east of Buffalo. Spectacularly eroded steep-walled buttes.

General Information

  • Camp sites: 8, and 2 group sites
  • Trash Pickup: No
  • Firewood: No

All Year, Weather Dependent.

Open 24 hours/day

No fees are required for this site

No fees

Getting There

Latitude / Longitude

Latitude: 45.5269874

Longitude: -103.1771159

Directions

From Buffalo, SD take Hwy 20 approximately 20 miles to Forest Road 3126. Turn right and campground will be on your left.

Parking

TRAILER / RV SITES AVERAGE PARKING SPUR: 30-60’ spurs, Open Parking Group Site

Facility and Amenity Information

Accessibility

Accessible Facilities:

Toilets, 

Fire Rings

Tables

Parking

Restrooms

Restrooms are available at this site.

Water

Potable water is not available at this site.

Recreation Opportunities

Last updated June 20, 2025