Castles National Landmark

Area Status: Open

Castles National Landmark is located in the Slim Buttes land unit in South Dakota. The Castles are a massive sandstone remnant which originated as a volcanic ash deposit and resemble a medieval castle. This natural wonder also serves as a habitat for one of North America's largest populations of Merlin falcons.

One of two National Natural Landmarks on the Sioux R.D.

At a Glance

Open Season: Yearlong

General Information

Directions: From Buffalo, SD take Hwy 20 approximately 20 miles to Forest Road 3126. Turn right into Reva Gap Campground. The south end of the campground has an information board and a nice view of Castles National Landmark.

Recreation Map

Map showing recreational areas. Map Information

Activities

Campground Camping

Day Hiking

Viewing Scenery

Scenic Driving