Castle Rock is a pillar located in Contra Costa County, California. It appears on the Clayton USGS 7.5-minute topographic quadrangle. The nearest populated place is Alamo Oaks, approximately 2.9 miles to the S.
Contra Costa County · California
Castle Rock is a pillar located in Contra Costa County, California. It appears on the Clayton USGS 7.5-minute topographic quadrangle. The nearest populated place is Alamo Oaks, approximately 2.9 miles to the S.