Mill Valley is a valley located in Napa County, California. It appears on the Saint Helena USGS 7.5-minute topographic quadrangle. The nearest populated place is Veteran Heights, approximately 0.7 miles to the WNW.
Napa County · California
Mill Valley is a valley located in Napa County, California. It appears on the Saint Helena USGS 7.5-minute topographic quadrangle. The nearest populated place is Veteran Heights, approximately 0.7 miles to the WNW.