Refugio Valley is a valley located in Contra Costa County, California. It appears on the Mare Island USGS 7.5-minute topographic quadrangle. The nearest populated place is Hercules, approximately 0.4 miles to the SSW.
Contra Costa County · California
Refugio Valley is a valley located in Contra Costa County, California. It appears on the Mare Island USGS 7.5-minute topographic quadrangle. The nearest populated place is Hercules, approximately 0.4 miles to the SSW.