The town lies a few miles east of the Rampart Range of the Rocky Mountains on the western edge of the Great Plains. Castle Rock, the butte for which the town is named, is just north of the town center. Other prominent landforms visible from Castle Rock include Dawson Butte, Devils Head, Mount Blue Sky, and Pikes Peak.
The town lies a few miles east of the Rampart Range of the Rocky Mountains on the western edge of the Great Plains Castle Rock, the butte for which the town is named, is just north of the town center. Other prominent landforms visible from Castle Rock include Dawson Butte, Devils Head, Mount Blue Sky, and Pikes Peak.