The Santa Clarita Valley (SCV) is part of the upper watershed of the Santa Clara River in

Southern California Southern California (commonly shortened to SoCal) is a geographic and Cultural area, cultural List of regions of California, region that generally comprises the southern portion of the U.S. state of California. Its densely populated coastal reg ...

. The western portion of the valley was part of the Rancho San Francisco Mexican

land grant A land grant is a gift of real estate—land or its use privileges—made by a government or other authority as an incentive, means of enabling works, or as a reward for services to an individual, especially in return for military service. Grants ...

. Located in

Los Angeles County Los Angeles County, officially the County of Los Angeles and sometimes abbreviated as LA County, is the most populous county in the United States, with 9,663,345 residents estimated in 2023. Its population is greater than that of 40 individua ...

. The valley's main population center is the city of Santa Clarita which includes the neighborhoods of Canyon Country, Newhall, Saugus, and

Valencia Valencia ( , ), formally València (), is the capital of the Province of Valencia, province and Autonomous communities of Spain, autonomous community of Valencian Community, the same name in Spain. It is located on the banks of the Turia (r ...

. Adjacent unincorporated communities include Castaic, Stevenson Ranch, Val Verde, and

Etymology

The Santa Clara River was named by Spanish explorers for

Clare of Assisi Chiara Offreduccio (16 July 1194 – 11 August 1253), known as Clare of Assisi (sometimes spelled ''Clara'', ''Clair'' or ''Claire''; ), is an Italians, Italian saint who was one of the first followers of Francis of Assisi. Inspired by the te ...

. The valley later became known as "little Santa Clara" in deference to the Northern California mission and city of

Santa Clara, California Santa Clara ( ; Spanish language, Spanish for "Clare of Assisi, Saint Clare") is a city in Santa Clara County, California. The city's population was 127,647 at the 2020 United States census, 2020 census, making it the List of cities and towns i ...

. In time, "little Santa Clara" became "Santa Clarita".

Geography

The Santa Clarita Valley is bordered by the Lake Piru area, including the community of Val Verde,

Los Padres National Forest Los Padres National Forest is a United States national forest in Southern California, southern and central California. Administered by the United States Forest Service, Los Padres includes most of the mountainous land along the California coast ...

, and

Castaic Lake Castaic Lake (Chumashan languages, Chumash: ''Kaštiq'') is a reservoir formed by Castaic Dam on Castaic Creek, in the Sierra Pelona Mountains of northwestern Los Angeles County, California, United States, near the town of Castaic, California, C ...

to the northwest,

Sierra Pelona Mountains The Sierra Pelona, also known as the Sierra Pelona Ridge or the Sierra Pelona Mountains and originally known as the Liebre Mountains, is a mountain ridge in the Transverse Ranges in Southern California. Located in northwest Los Angeles County, t ...

and

Angeles National Forest The Angeles National Forest (ANF) of the United States Forest Service is located in the San Gabriel Mountains and Sierra Pelona Mountains, primarily within Los Angeles County in Southern California. The ANF manages a majority of the San Gabri ...

to the north and northeast,

San Gabriel Mountains The San Gabriel Mountains () are a mountain range located in Los Angeles and San Bernardino counties, California, United States. The mountain range is part of the Transverse Ranges and lies between the Los Angeles Basin and the Mojave Desert ...

to the east and southeast, and

Santa Susana Mountains The Santa Susana Mountains are a transverse range of mountains in Southern California, north of the city of Los Angeles, in the United States. The range runs east-west, separating the San Fernando and Simi valleys on its south from the Santa ...

to the south and southwest, and

Ventura County Ventura County () is a county located in the southern part of the U.S. state of California. As of the 2020 census, the population was 843,843. The largest city is Oxnard, and the county seat is the city of Ventura. Ventura County comprises ...

and the

Santa Clara River Valley The Santa Clara River Valley is a rural, mainly agricultural valley in Ventura County, California Ventura County () is a County (United States), county located in Southern California, the southern part of the U.S. state of California. As of t ...

to the west. To the west-northwest lies the

Topatopa Mountains The Topatopa Mountains are a mountain range in Ventura County, California, north of Ojai, Santa Paula, and Fillmore. They are part of the Transverse Ranges of Southern California. Etymology A name for the mountains was first inscribed within t ...

. Santa Clarita Valley is connected to a wide array of other nearby valleys: the

San Fernando Valley The San Fernando Valley, known locally as the Valley, is an urbanized valley in Los Angeles County, Los Angeles County, California. Situated to the north of the Los Angeles Basin, it comprises a large portion of Los Angeles, the Municipal corpo ...

and

Los Angeles Basin The Los Angeles Basin is a sedimentary Structural basin, basin located in Southern California, in a region known as the Peninsular Ranges. The basin is also connected to an wikt:anomalous, anomalous group of east–west trending chains of mountai ...

via Newhall Pass to the south;

Antelope Valley The Antelope Valley is a valley primarily located in northern Los Angeles County, California, United States and the southeast portion of Kern County, California, Kern County, and constitutes the western tip of the Mojave Desert. It is situated ...

via CA 14 through Soledad Pass to the northeast; the

San Joaquin Valley The San Joaquin Valley ( ; Spanish language in California, Spanish: ''Valle de San Joaquín'') is the southern half of California's Central Valley (California), Central Valley. Famed as a major breadbasket, the San Joaquin Valley is an importa ...

via I-5 through

Tejon Pass The Tejon Pass , previously known as ''Portezuelo de Cortes'', ''Portezuela de Castac'', and Fort Tejon Pass is a mountain pass between the southwest end of the Tehachapi Mountains and northeastern San Emigdio Mountains, linking Southern Calif ...

to the northwest, and Leona Valley via San Francisquito and Bouquet canyons. Downstream lies the

, which was given the moniker Heritage Valley by the tourism bureau representing Piru, Fillmore, and Santa Paula. Upstream is Soledad Canyon which contains the communities of Vincent, Acton, Ravenna, and Agua Dulce.

Geology

The Santa Clarita Valley is underlain by

Quaternary The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS), as well as the current and most recent of the twelve periods of the ...

alluvial deposits and coarse-grained

Pleistocene The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fin ...

age conglomerates dominated by

sandstone Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sand ...

of marine and non-marine origin. The far eastern end of the valley features predominantly coarse-grained

Tertiary Tertiary (from Latin, meaning 'third' or 'of the third degree/order..') may refer to: * Tertiary period, an obsolete geologic period spanning from 66 to 2.6 million years ago * Tertiary (chemistry), a term describing bonding patterns in organic ch ...

age formations of

sedimentary Sedimentary rocks are types of rock formed by the cementation of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or deposited at Earth's surface. Sedime ...

origin. The southern end of Bouquet Canyon features a large areas of artificial fill stretching from Newhall Ranch Road up to Copper Hill Drive. The valley is bisected by the San Gabriel Fault, which runs through the center of the valley along a NW-SE axis. The much smaller Holser Fault runs east-to-west between the south-eastern

and the present day community of

. Neither fault line has been active since the early

Holocene The Holocene () is the current geologic time scale, geological epoch, beginning approximately 11,700 years ago. It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene to ...

era. The valley is located in the northeastern extreme of the Ventura Basin Province, a petroleum-rich

sedimentary basin Sedimentary basins are region-scale depressions of the Earth's crust where subsidence has occurred and a thick sequence of sediments have accumulated to form a large three-dimensional body of sedimentary rock They form when long-term subsidence ...

with a long history of oil and gas production.

Climate

The valley features a

Mediterranean climate A Mediterranean climate ( ), also called a dry summer climate, described by Köppen and Trewartha as ''Cs'', is a temperate climate type that occurs in the lower mid-latitudes (normally 30 to 44 north and south latitude). Such climates typic ...

(

Köppen Köppen is a German surname. Notable people with the surname include: * Bernd Köppen (1951–2014), German pianist and composer * Carl Köppen (1833-1907), German military advisor in Meiji era Japan * Edlef Köppen (1893–1939), German author ...

''Csa''), approaching a

semi-arid climate A semi-arid climate, semi-desert climate, or steppe climate is a dry climate sub-type. It is located on regions that receive precipitation below potential evapotranspiration, but not as low as a desert climate. There are different kinds of se ...

, with hot, dry summers and mild, moderately rainy winters with rare snowfall. Temperatures often exceed , even , on hot summer afternoons but rarely dip below on cold winter nights. The valley lies within

plant hardiness Hardiness of plants describes their ability to survive adverse growing conditions. It is usually limited to discussions of climatic adversity. Thus a plant's ability to tolerate cold, heat, drought, flooding, or wind are typically considered measu ...

zones 9b and 10a. Late spring and early summer mornings are often

overcast Overcast or overcast weather, as defined by the World Meteorological Organization, is the meteorological condition of clouds obscuring at least 95% of the sky. However, the total cloud cover must not be entirely due to obscuring phenomena near ...

due to the formation of a

marine layer A marine layer is an air mass that develops over the surface of a large body of water, such as an ocean or large lake, in the presence of a Inversion (meteorology), temperature inversion. The inversion itself is usually initiated by the cooling ...

off the coast that moves inland overnight. These clouds typically retreat out of the valley by midday. The valley is part of a "wind-tunnel-like-corridor" that connects the high desert with the

Oxnard Plain The Oxnard Plain is a large coastal plain in southwest Ventura County, California, United States surrounded by the mountains of the Transverse Ranges. The cities of Oxnard, Camarillo, Port Hueneme and much of Ventura as well as the unincorpo ...

on the coast. This funnels the

Santa Ana winds The Santa Ana winds, occasionally referred to as the devil winds, are strong, extremely dry katabatic winds that originate inland and affect coastal Southern California and northern Baja California. They originate from cool, dry high-pressure ...

which spreads wildfires and has been called one of the "most dangerous wind and fire corridors in Southern California."

Wildfires

Characterized by dry hills covered in brush and

chaparral Chaparral ( ) is a shrubland plant plant community, community found primarily in California, southern Oregon, and northern Baja California. It is shaped by a Mediterranean climate (mild wet winters and hot dry summers) and infrequent, high-intens ...

, Santa Clarita is susceptible to wildfires. Although wildfires are most common in summer and fall, they can occur throughout the year during drought conditions, such as in December 2017. Wildfire risk is highest when

blow through the area from the Mojave Desert. Notable wildfires in the Santa Clarita Valley include the Buckweed Fire, Sand Fire, Rye Fire, Tick Fire, and Maria Fire.

Ecology

Santa Clarita lies on the boundary between the WWF-designated California coastal sage and chaparral

ecoregion An ecoregion (ecological region) is an ecological and geographic area that exists on multiple different levels, defined by type, quality, and quantity of environmental resources. Ecoregions cover relatively large areas of land or water, and c ...

to the southwest, and

California montane chaparral and woodlands The California montane chaparral and woodlands is an ecoregion defined by the World Wildlife Fund, spanning of mountains in the Transverse Ranges, Peninsular Ranges, and Coast Ranges of southern and central California. The ecoregion is part of ...

ecoregion to the northeast. Resident species of note include

bobcat The bobcat (''Lynx rufus''), also known as the wildcat, bay lynx, or red lynx, is one of the four extant species within the medium-sized wild cat genus '' Lynx''. Native to North America, it ranges from southern Canada through most of the c ...

coyote The coyote (''Canis latrans''), also known as the American jackal, prairie wolf, or brush wolf, is a species of canis, canine native to North America. It is smaller than its close relative, the Wolf, gray wolf, and slightly smaller than the c ...

red-tailed hawk The red-tailed hawk (''Buteo jamaicensis'') is a bird of prey that breeds throughout most of North America, from the interior of Alaska and northern Canada to as far south as Panama and the West Indies. It is one of the most common members of ...

, and desert cottontail.

Entertainment

The Santa Clarita Valley is about from the Burbank Bob Hope Airport, and about from

Los Angeles International Airport Los Angeles International Airport is the primary international airport serving Los Angeles and its Greater Los Angeles, surrounding metropolitan area, in the U.S. state of California. LAX is located in the Westchester, Los Angeles, Westcheste ...

. It is home to the theme park

Six Flags Magic Mountain Six Flags Magic Mountain, formerly known and colloquially referred to as simply Magic Mountain, is a amusement park located in Valencia, California, northwest of downtown Los Angeles. It opened on May 29, 1971, as a development of the Newha ...

which includes the gated waterpark Six Flags Hurricane Harbor. It offers a variety of family-oriented activity centers such as the Santa Clarita Aquatics Center, Copper Horse Riding Ranch, and the Cube (formerly Ice Station Valencia), restaurants and shopping centers, golf courses, cinemas and theaters, luxurious day spas, outdoor recreation areas like

Placerita Canyon Placerita Canyon State Park is a California State Park located on the north slope of the western San Gabriel Mountains, in an unincorporated rural area of Los Angeles County, near the city of Santa Clarita. The park hosts a variety of historic ...

, and Santa Clarita Woodlands Park, as well as acres of parkland, animal sanctuaries like the Gentle Barn and Gibbon Conservation Center, over 70 miles of paseos and trails for hiking and biking, and more. The valley is also home to a number of historical sites, such as the oil drilling town Mentryville, Walk of Western Stars, and William S. Hart Ranch and Museum. The Santa Clarita Valley has a rich Western heritage, and since 1994, it has hosted an annual Cowboy Festival, which attracts more than 10,000 visitors each year.

Education

Elementary school students in Santa Clarita are served by the Castaic, Newhall, Saugus, and Sulphur Springs school districts. Junior high and high schools are part of the William S. Hart Union High School District, except for Castaic Middle School which is in the Castaic Union School District. The unincorporated mountain communities of Acton and Agua Dulce are served by the Acton-Agua Dulce Unified School District, which serves students from kindergarten through 12th grade. There are three institutions of higher education in the valley:

College of the Canyons College of the Canyons (COC) is a public community college in Santa Clarita, California. It comprises the Santa Clarita Community College District. The college is accredited by the Western Association of Schools and Colleges and has campus loca ...

California Institute of the Arts The California Institute of the Arts (CalArts) is a Private university, private art school in Santa Clarita, California. It was incorporated in 1961 as the first degree-granting institution of higher learning in the US created specifically for ...

, and The Master's University.

Explanatory notes

References

External links

Santa Clarita Valley Historical Society
{{Authority control * Los Angeles County, California, regions Santa Clara River (California) Valleys of California Valleys of Los Angeles County, California