Mussel Rock is a island located in San Mateo County, California. It appears on the San Gregorio USGS 7.5-minute topographic quadrangle. The nearest populated place is San Gregorio, approximately 1.6 miles to the SSE.
San Mateo County · California
Mussel Rock is a island located in San Mateo County, California. It appears on the San Gregorio USGS 7.5-minute topographic quadrangle. The nearest populated place is San Gregorio, approximately 1.6 miles to the SSE.