Santa Clara River (California)

Santa Clara River
Rio de Santa Clara
View of Santa Clara River with Rancho Camulos in the foreground, 1888
Map of the Santa Clara River watershed
Location of the mouth of the Santa Clara River in California
Native nameRío Santa Clara (Spanish)
Location
CountryUnited States
StateCalifornia
CountiesLos Angeles, Ventura
CitiesOxnard, Ventura, Santa Paula, Fillmore, Santa Clarita
Physical characteristics
SourceSan Gabriel Mountains
  locationAliso Canyon, Angeles National Forest, Los Angeles County
  coordinates34°26′01″N 118°21′51″W / 34.43361°N 118.36417°W / 34.43361; -118.36417
  elevation5,800 ft (1,800 m)
MouthPacific Ocean
  location
Between Ventura and Oxnard, Ventura County
  coordinates
34°14′07″N 119°15′49″W / 34.23528°N 119.26361°W / 34.23528; -119.26361
  elevation
0 ft (0 m)
Length83 mi (134 km)
Basin size1,600 sq mi (4,100 km2)
Discharge 
  locationVentura
  average176 cu ft/s (5.0 m3/s)
  minimum0 cu ft/s (0 m3/s)
  maximum165,000 cu ft/s (4,700 m3/s)
Basin features
Tributaries 
  rightSan Francisquito Creek, Castaic Creek, Piru Creek, Sespe Creek

The Santa Clara River (Spanish: Río Santa Clara) is an 83 mi (134 km) long river in Ventura and Los Angeles counties in Southern California. It drains parts of four ranges in the Transverse Ranges System north and northwest of Los Angeles, then flows west onto the Oxnard Plain and into the Santa Barbara Channel of the Pacific Ocean.

The watershed has provided habitat for a wide array of native plants and animals and has historically supplied humans with water, fish, and fertile farmland. The northern portion of the watershed was home to the Tataviam people while the southern portion was occupied by the Chumash people. Much of the Santa Clara River Valley is used for agriculture which has limited the use of structural levees to separate the natural floodplain from the river. Although it is one of the least altered rivers in Southern California, some levees exist where the river flows through areas of significant urban development.