Castro Valley is a valley located in Santa Clara County, California. It appears on the Chittenden USGS 7.5-minute topographic quadrangle. The nearest populated place is Nema (historical), approximately 3.0 miles to the E.
Santa Clara County · California
Castro Valley is a valley located in Santa Clara County, California. It appears on the Chittenden USGS 7.5-minute topographic quadrangle. The nearest populated place is Nema (historical), approximately 3.0 miles to the E.