Castle Rock (Colorado)
| Castle Rock | |
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| Highest point | |
| Elevation | 6,590 ft (2,010 m) |
| Prominence | 370 ft (110 m) |
| Coordinates | 39°22′44.72″N 104°51′21.79″W / 39.3790889°N 104.8560528°WCoordinates: 39°22′44.72″N 104°51′21.79″W / 39.3790889°N 104.8560528°W |
| Geography | |
 Castle Rock
Location in Colorado
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| Location |
Castle Rock, Colorado, United States |
Castle Rock is a butte in the Colorado Piedmont region of the Great Plains. An area landmark, it is located in as well as the namesake of the town of Castle Rock, Colorado.
The butte's caprock consists of rhyolite, rock which is strongly resistant to erosion. About 37 million years ago, a volcanic eruption took place that covered the area around Castle Rock with 20 feet (6.1 m) of rhyolite. After a few million years, mass flooding and erosion of the volcanic rock gave way to the castle-shaped butte visible today.
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Wikipedia