| Adobe Gulch | |
| Map: | California |
| Map Size: | 250 |
| Coordinates: | 37.498°N -122.3475°W |
| Length: | 1.2miles |
Adobe Gulch is a valley in San Mateo County, California, about 1.2miles long, located on the west side of Upper Crystal Springs Reservoir.[1] It has an elevation of 97 meters, or 318 feet. It is located at 37-29'53 N and 122-20'51 W.[2] Adobe Gulch is the northernmost of several tributaries (and the only one named by the USGS[3]) that descend the eastern flank of the Santa Cruz Mountains to Upper Crystal Springs Reservoir (and historically, Laguna Creek).