Long Gulch From Wikipedia, the free encyclopedia Valley in San Mateo County, California Long Gulch is a valley in San Mateo County, California.[1] 37°17′29″N 122°24′25″W / 37.291333°N 122.406919°W / 37.291333; -122.406919[2] ↑ USGS, 09-20-07 ↑ U.S. Geological Survey Geographic Names Information System: Long Gulch U.S. Geological Survey Geographic Names Information System: Long Gulch See also List of watercourses in the San Francisco Bay Area This San Mateo County, California-related article is a stub. You can help Wikipedia by expanding it.vte Related Articles
