Pine Tree Gulch is a valley in

San Mateo County, California San Mateo County ( ), officially the County of San Mateo, is a county (United States), county located in the U.S. state of California. As of the 2020 United States census, the population was 764,442. Redwood City, California, Redwood City is th ...

near

Bellvale Bellvale may refer to: * Bellvale, California, unincorporated community in San Mateo County, California *Bellvale, New York Bellvale is a wooded Hamlet (New York), hamlet in the town of Warwick, New York, Warwick in Orange County, New York, Orang ...

. It contains a small stream which is a tributary of

San Gregorio Creek San Gregorio Creek (''Spanish for:'' Saint Gregory) is a river in San Mateo County, California. Its tributaries originate on the western ridges of the Santa Cruz Mountains whence it courses southwest through steep forested canyons. The San Grego ...

. The stream flows about from its source to its confluence with El Corte de Madera Creek.

Notes

Valleys of San Mateo County, California Landforms of the San Francisco Bay Area Valleys of California {{SanMateoCountyCA-geo-stub