Administered by the Forest Service
United States Department of Agriculture
has been designated a
Registered Natural Landmark
This site possesses exceptional value as an illustration of the nation's natural heritage and contributes to a better understanding of man's environment
Heritage Conservation and Recreation Service
United States Department of the Interior
Erected 1979 by Heritage Conservation and Recreation Service, United States Department of the Interior.
Topics. This historical marker is listed in this topic list: Environment.
Location. 45° 31.443′ N, 103° 10.425′ W. Marker is near Reva, South Dakota, in Harding County. Marker can be reached from Forest Road 31261 0.2 miles south of Forest Road 3126. Accessed through the Reva Gap Campground. Touch for map. Marker is in this post office area: Reva SD 57651, United States of America. Touch for directions.
Also see . . . Castles National Landmark. (Submitted on August 17, 2020, by Connor Olson of Lemmon, South Dakota.)
Credits. This page was last revised on August 17, 2020. It was originally submitted on August 17, 2020, by Connor Olson of Lemmon, South Dakota. This page has been viewed 46 times since then. Photos: 1, 2. submitted on August 17, 2020, by Connor Olson of Lemmon, South Dakota. • Mark Hilton was the editor who published this page.