Portola Valley is a valley located in San Mateo County, California. It appears on the Palo Alto USGS 7.5-minute topographic quadrangle. The nearest populated place is Searsville (historical), approximately 0.3 miles to the NNW.
San Mateo County · California
Portola Valley is a valley located in San Mateo County, California. It appears on the Palo Alto USGS 7.5-minute topographic quadrangle. The nearest populated place is Searsville (historical), approximately 0.3 miles to the NNW.