[1] With an elevation of 3,768 feet (1,148 m), Castle Rock Butte is the 235th highest summit in the state of South Dakota.
[2] The Castle Rock Butte was used by Native Americans, explorers and early settlers as a lookout and reference point during their travels.
The name is credited to Dr. Edwin James, a botanist on Long's Expedition of 1820.
The town of Castle Rock is named after this solitary natural landmark.
This South Dakota state location article is a stub.