Green Valley is a valley located in Contra Costa County, California. It appears on the Diablo USGS 7.5-minute topographic quadrangle. The nearest populated place is Alamo Oaks, approximately 0.8 miles to the WNW.
Contra Costa County · California
Green Valley is a valley located in Contra Costa County, California. It appears on the Diablo USGS 7.5-minute topographic quadrangle. The nearest populated place is Alamo Oaks, approximately 0.8 miles to the WNW.