Simms 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 Greenbrae, approximately 1.3 miles to the SW.
Marin County · California
Simms 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 Greenbrae, approximately 1.3 miles to the SW.