Richardson Island is a island located in Marin County, California. It appears on the San Rafael USGS 7.5-minute topographic quadrangle. The nearest populated place is Baltimore Park, approximately 0.9 miles to the WSW.
Marin County · California
Richardson Island is a island located in Marin County, California. It appears on the San Rafael USGS 7.5-minute topographic quadrangle. The nearest populated place is Baltimore Park, approximately 0.9 miles to the WSW.