San Gregorio Creek

San Gregorio Creek
Arroyo de San Gregorio, Arroyo Rodrigues
San Gregorio State Beach
Location of the mouth of San Gregorio Creek at the Pacific Ocean
Location
CountryUnited States
StateCalifornia
RegionSan Mateo County
Physical characteristics
SourceConfluence of La Honda Creek and Alpine Creek in the Santa Cruz Mountains
Source confluence 
  locationLa Honda, California, San Mateo County, United States of America
  coordinates37°19′45″N 122°16′58″W / 37.32917°N 122.28278°W / 37.32917; -122.28278
  elevation320 ft (98 m)
MouthPacific Ocean
  location
San Gregorio, California
  coordinates
37°18′36″N 122°16′37″W / 37.31000°N 122.27694°W / 37.31000; -122.27694
  elevation
0 ft (0 m)
Basin features
Tributaries 
  leftAlpine Creek
  rightLa Honda Creek, Harrington Creek, Bogess Creek, El Corte de Madera Creek, Clear Creek, Coyote 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 Gregorio Creek mainstem begins at the confluence of Alpine and La Honda Creeks, whence it flows 12 miles (19 km) through rolling grasslands and pasturelands until it meets the Pacific Ocean at San Gregorio State Beach. It traverses the small unincorporated communities of La Honda, San Gregorio, Redwood Terrace and Sky Londa.