Castle Rock is a island located in Los Angeles County, California. It appears on the San Clemente Island North USGS 7.5-minute topographic quadrangle. The nearest populated place is Avalon, approximately 27.0 miles to the NE.
Los Angeles County · California
Castle Rock is a island located in Los Angeles County, California. It appears on the San Clemente Island North USGS 7.5-minute topographic quadrangle. The nearest populated place is Avalon, approximately 27.0 miles to the NE.