Frowning Ridge is a ridge located in Contra Costa County, California. It appears on the Briones Valley USGS 7.5-minute topographic quadrangle. The nearest populated place is Orinda Village, approximately 1.6 miles to the ENE.
Contra Costa County · California
Frowning Ridge is a ridge located in Contra Costa County, California. It appears on the Briones Valley USGS 7.5-minute topographic quadrangle. The nearest populated place is Orinda Village, approximately 1.6 miles to the ENE.