| Castle Rock Regional Recreation Area (Castle Rock Park) | |
| Location: | Contra Costa County, California |
| Nearest City: | Walnut Creek |
| Coordinates: | 37.885°N -121.9914°W |
| Area: | 18000acres |
| Governing Body: | East Bay Regional Park District |
Castle Rock Regional Recreation Area is a 18000acres regional park of the East Bay Regional Park District. It is located in Contra Costa County, in the East Bay region of northern California. [1]
The park lies in a scenic sandstone canyon in the Diablo Foothills of the northern Diablo Range, west of Mount Diablo and Mount Diablo State Park. The closest city is Walnut Creek to the north. [1]
Castle Rock Regional Recreation Area is bordered by: Diablo Foothills Regional Park on the west, and Shell Ridge Open Space to the north. Together, these three parks provide 18000acres of parkland for visitors to enjoy. [1]