geo.wikisort.org - Mountains

Castle Rock Butte is a summit in Butte County, South Dakota, in the United States.[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 butte looked to many travelers like a castle on a hill. 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.

Castle Rock was so named on account of its castle-like outline.[3]

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