Round Valley is a basin located in Contra Costa County, California. It appears on the Tassajara USGS 7.5-minute topographic quadrangle. The nearest populated place is Marsh Creek Springs, approximately 5.1 miles to the WNW.
Contra Costa County · California
Round Valley is a basin located in Contra Costa County, California. It appears on the Tassajara USGS 7.5-minute topographic quadrangle. The nearest populated place is Marsh Creek Springs, approximately 5.1 miles to the WNW.