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77-572: 34°09′00″N 118°48′50″W  /  34.15000°N 118.81389°W  / 34.15000; -118.81389 This golf club or course-related article is a stub . You can help Misplaced Pages by expanding it . This Los Angeles County, California –related article is a stub . You can help Misplaced Pages by expanding it . This article about a sports venue in California is a stub . You can help Misplaced Pages by expanding it . Los Angeles County, California Los Angeles County , officially

154-658: A mountain range located in northern Los Angeles County and western San Bernardino County, California , United States. The mountain range is part of the Transverse Ranges and lies between the Los Angeles Basin and the Mojave Desert , with Interstate 5 to the west and Interstate 15 to the east. The range lies in, and is surrounded by, the Angeles and San Bernardino National Forests, with

231-511: A $ 45 million project to reconstruct the roadway, construct soldier pile retaining walls, repair drainage systems, install rockfall protection, and provide asphalt concrete overlay and traffic striping, should begin in fall 2010." In 2011, the planned repair of the road was abruptly terminated, due to concern of high future maintenance costs, and potential impact on the local bighorn sheep population. However, in October 2016, Caltrans announced it

308-585: A decrease due to net migration of 361,895 people. Immigration resulted in a net increase of 293,433 people, and migration from within the United States resulted in a net decrease of 655,328 people. The racial makeup of Los Angeles County was 4,936,599 (50%) White, 1,346,865 (13.7%) Asian, 856,874 (9%) African American, 72,828 (0.7%) Native American, 26,094 (0.3%) Pacific Islander, 2,140,632 (21.8%) from other races, and 438,713 (4.5%) from two or more races. Non-Hispanic whites numbered 2,728,321, or 28% of

385-502: A hiker gets lost or stuck on a mountain ledge or may fall downhill. Some of the more extreme cases of emergency search-and-rescue efforts will often be given air time on Los Angeles television and radio newscasts. The Pacific Crest Trail passes along the mountain ridge. During the winter, many Southern California mountaineers climb a variety of snow routes and even some ice routes in the San Gabriel Mountains. Baldy Bowl

462-668: A large fault block between the San Andreas Fault Zone to the north, and the San Gabriel Fault and the Sierra Madre and Cucamonga Fault Zones to the south. This tectonic block was uplifted during the Miocene and has since been dissected by numerous rivers and washes. The highest elevation, Mount San Antonio (Mount Baldy) at 10,069 feet (3,069 m), rises towards the eastern extremity of

539-406: A large cluster of government buildings in the city's Civic Center. Historically, the courthouses were county-owned buildings that were maintained at county expense, which created significant friction since the trial court judges, as officials of the state government, had to lobby the county Board of Supervisors for facility renovations and upgrades. In turn, the state judiciary successfully persuaded

616-400: A median income of $ 36,299 versus $ 30,981 for females. The per capita income for the county was $ 20,683. There are 14.4% of families living below the poverty line and 17.9% of the population, including 24.2% of under 18 and 10.5% of those over 64. Los Angeles County has the highest number of millionaires of any county in the nation, totaling 261,081 households as of 2007. The homeownership rate

693-657: A nearly two-hour trip. Reopening Highway 39 would cut the drive-time to the Waterman Ski Area in half and shorten the trip east to Wrightwood. According to the Caltrans District Seven "Inside Seven" Newsletter, "Two projects that will address those issues and get the highway reopened are scheduled for construction soon. The first, building two retaining walls near the city of Azusa from Old San Gabriel Canyon Road to approximately 4 miles (6.4 km) south of SR-2, could begin in mid-2009. The second,

770-516: A single county. As a result, both the county superior court and the federal district court are respectively the busiest courts of their type in the nation. Many celebrities have been seen in Los Angeles courts. In 2003, the television show Extra (based in nearby Glendale ) found itself running so many reports on the legal problems of local celebrities that it spun them off into a separate show, Celebrity Justice . State cases are appealed to

847-627: A steep, rugged and precipitous gorge. The two meet at San Gabriel Reservoir , and turn south, boring through the southern portion of the San Gabriels, emptying of the mountains near Azusa into the urban San Gabriel Valley , and eventually to the Pacific Ocean near Seal Beach . San Gabriel Mountains peaks within the Angeles National Forest include: The climate of the range varies with elevation from continental to

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924-574: Is 365,000 workers. Despite a business exodus from Downtown Los Angeles since the COVID-19 pandemic , the city's urban core is evolving as a cultural center with the world's largest showcase of architecture designed by Frank Gehry . The following major companies have headquarters in Los Angeles County: The Los Angeles County Office of Education provides a supporting role for school districts in

1001-400: Is 47.9%, and the median value for houses is $ 409,300. 42.2% of housing units are in multi-unit structures. Los Angeles County has the largest number of homeless people , with "48,000 people living on the streets, including 6,000 veterans ," in 2010. As of 2017 the number of homeless people in the county increased to nearly 58,000. In 2015, there were over two thousand Christian churches ,

1078-663: Is a state-mandated county transportation commission that also operates bus and rail. In the United States House of Representatives , Los Angeles County is split between 17 congressional districts. In the California State Senate , Los Angeles County is split between 13 legislative districts. In the California State Assembly , Los Angeles County is split between 24 legislative districts. On November 4, 2008, Los Angeles County

1155-542: Is by far the most popular route, getting hundreds of climbers per season. There are many other routes, offering a variety of choices. Rock climbing is not as common in the San Gabriel Range as it is in neighboring areas, as this range is famous for loose rock. Various faults crisscross the range, making it one of the steepest and fastest-growing ranges in the world. Plate tectonic activity breaks up most rock, making it unsuitable for rock climbing. Williamson Rock

1232-491: Is home to the largest Armenian population outside of Armenia. Los Angeles County contains the largest Iranian population outside of Iran of any other county or county equivalent globally. At the 2000 census, there were 9,519,338 people, 3,133,774 households, and 2,137,233 families in the county. The population density was 2,344 inhabitants per square mile (905/km ). There were 3,270,909 housing units at an average density of 806 units per square mile (311 units/km ). Of

1309-431: Is managed on a day-to-day basis by a chief executive officer and is organized into many departments, each of which is enormous in comparison to equivalent county-level (and even many state-level) departments anywhere else in the United States. Some of the larger or better-known departments include: The Los Angeles County Metropolitan Transportation Authority , despite its name, is not a County department. Technically it

1386-472: Is more arts-centered. Santa Monica's pier is a well known tourist spot, famous for its Ferris wheel and bumper car rides, which were featured in the introductory segment of the television sitcom Three's Company . Further north in Pacific Palisades one finds the beaches used in the television series Baywatch . The fabled Malibu , home of many film and television stars, lies west of it. In

1463-622: Is much better, and it is open much of the winter. State Route 39 connected the city of Azusa with the Angeles Crest Highway until it was seriously damaged by landslides, first in 1978, and again in 2005. The highway was opened to emergency crews in February 2003. People heading to Mount Waterman must now travel west to Pasadena and then travel on the Angeles Crest Highway (Highway 2) in La Cañada Flintridge,

1540-416: Is one of the most ethnically diverse U.S. counties. The county's seat , Los Angeles , is the second most populous city in the United States , with 3,822,238 residents estimated in 2022. The county has been world-renowned as the domicile of the U.S. motion picture industry since the latter's inception in the early 20th century. Los Angeles County is one of the original counties of California , created at

1617-399: Is rainfall mostly in the wintertime, but the mountains in the north-central part of the county have snow during winter. In 2019, the median household income in the county was $ 72,797. Los Angeles County had a population of 9,818,605 in the 2010 United States Census . This includes a natural increase since the last census of 583,364 people (i.e., 1,152,564 births minus 569,200 deaths) and

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1694-511: Is the U.S. Supreme Court in Washington, D.C. The following table includes the number of incidents reported and the rate per 1,000 persons for each type of offense. Crime in 2013 According to the authors of Wild L.A. , a book about urban biodiversity, "Los Angeles is the birdiest county in the country with over 500 recorded species." L.A.'s amenable climate supports a large number of introduced, tropical and migratory species. Because of

1771-644: Is the largest diocese in the United States. In 2014, the county had 3,275 religious organizations, the most out of all US counties. The Government of Los Angeles County is defined and authorized under the California Constitution , California law and the Charter of the County of Los Angeles. Much of the Government of California is in practice the responsibility of local governments such as

1848-534: The County of Los Angeles and sometimes abbreviated as L.A. County , is the most populous county in the United States , with 9,861,224 residents estimated in 2022. Its population is greater than that of 40 individual U.S. states . Comprising 88 incorporated cities and many unincorporated areas within a total area of 4,083 square miles (10,570 km ), it is home to more than a quarter of Californians and

1925-720: The La Brea Tar Pits , the Arboretum of Los Angeles , and two horse racetracks and two car racetracks ( Pomona Raceway and Irwindale Speedway ), also the RMS ; Queen Mary located in Long Beach, and the Long Beach Grand Prix , and miles of beaches—from Zuma to Cabrillo. Venice Beach is a popular attraction whose Muscle Beach used to attract throngs of tourists admiring "hardbodies". Today, it

2002-622: The Los Angeles Basin , San Fernando Valley , and San Gabriel Valley . Other population centers are found in the Santa Clarita Valley , Pomona Valley , Crescenta Valley and Antelope Valley . The county is divided west-to-east by the San Gabriel Mountains , which are part of the Transverse Ranges of southern California, and are contained mostly within the Angeles National Forest . Most of

2079-543: The San Andreas Fault as its northern border. The highest peak in the range is Mount San Antonio , commonly referred to as Mt. Baldy. Mount Wilson is another notable peak, known for the Mount Wilson Observatory and the antenna farm that houses many of the transmitters for local media. The observatory may be visited by the public. On October 10, 2014, Barack Obama designated the area

2156-710: The San Emigdio Mountains , the southernmost part of Tehachapi Mountains and the Sierra Pelona Mountains . Los Angeles County includes San Clemente Island and Santa Catalina Island , which are part of the Channel Islands archipelago off the Pacific Coast . The Northern part of the county has a Desert climate , while the rest of the county generally is a mix of Semi-arid and a hot-summer Mediterranean climate . There

2233-526: The San Gabriel Mountains National Monument . The Trust for Public Land has protected more than 3,800 acres (1,500 ha) of land in the San Gabriel Mountains, its foothills, and the Angeles National Forest. Much of the range features rolling peaks. The range lacks craggy features, but contains a large number of canyons and is generally very rugged and difficult to traverse. The San Gabriel Mountains are composed of

2310-751: The San Gabriel River and the Santa Clara River flow in Los Angeles County, while the primary mountain ranges are the Santa Monica Mountains and the San Gabriel Mountains . The western extent of the Mojave Desert begins in the Antelope Valley , in the northeastern part of the county. Most of the population of Los Angeles County resides in the south and southwest, with major population centers in

2387-651: The Victor Valley and the western Cajon Valley. Past its junction with Angeles Forest Highway, traveling east, Angeles Crest Highway features blind curves, various bumps, and potholes. This section of the "Crest" is closed during the winter due to rockfall and avalanche hazards. State Route 2, just past Mountain High , is called the Big Pines Highway to the Route 138 junction. Another key county route through,

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2464-405: The 1870s, Los Angeles County was divided into townships (many of which were amalgamations of one or more old ranchos ): As shown by the map below, Los Angeles County is bordered on the north by Kern County , on the east by San Bernardino County , on the southeast by Orange County , on the south by the Pacific Ocean , and on the west by Ventura County . According to the U.S. Census Bureau ,

2541-496: The 3,133,774 households 37% had children under the age of 18 living with them, 48% were married couples living together, 15% had a female householder with no husband present, and 32% were non-families. 25% of households were one person and 7% were one person aged 65 or older. The average household size was 2.98 and the average family size was 3.61. The age distribution was 28% under the age of 18, 10% from 18 to 24, 33% from 25 to 44, 19% from 45 to 64, and 10% 65 or older. The median age

2618-993: The Court of Appeal for the Second Appellate District, which is also headquartered in the Civic Center , and then to the California Supreme Court , which is headquartered in San Francisco but also hears argument in Los Angeles (again, in the Civic Center). Federal cases are appealed to the Court of Appeals for the Ninth Circuit , which hears them at its branch building in Pasadena . The court of last resort for federal cases

2695-458: The Government of Los Angeles County. The county's voters elect a governing five-member Los Angeles County Board of Supervisors . The small size of the board means each supervisor represents over 2 million people. The board operates in a legislative, executive, and quasi-judicial capacity. As a legislative authority, it can pass ordinances for the unincorporated areas (ordinances that affect

2772-797: The Greater Los Angeles Area. LAX is operated by Los Angeles World Airports (LAWA), an agency of the City of Los Angeles. Other important commercial airports in Los Angeles County include: The following general aviation airports also are located in Los Angeles County: The U.S. Air Force operates three airports in Los Angeles County: San Gabriel Mountains The San Gabriel Mountains ( Spanish : Sierra de San Gabriel ) comprise

2849-665: The Mediterranean, with mostly dry summers (except for scattered summer thunderstorms) and cold, wet winters. Snow can fall above 4,000 ft (1,200 m) elevation during frontal passages between November and April, but is most common in December through March. Annual precipitation totals are mostly in excess of 25 in (640 mm) on the coastal (southern) slopes above 3,000 ft (900 m) elevation, with up to 45 in (1,100 mm) falling in some areas above 5,000 ft (1,500 m). The coastal (south) side of

2926-616: The North American west coast. Like nearly all of the other mountains in the Transverse Ranges , the San Gabriels are a series of fault blocks that were uplifted in the Cenozoic . Tectonic uplift rates and erosion rates systematically increase as topography steepens eastward in the San Gabriel Mountains, where the San Andreas and San Jacinto faults meet. Current rates of erosion in the eastern San Gabriel mountains are among

3003-622: The San Andreas Fault produces numerous springs, sag ponds, and wetland areas that are critical habitats for a variety of native species. Larger animals include California mule deer , California black bear , San Pedro Martir coyote and the rarely seen mountain lion or cougar. Smaller mammals include raccoons, opossum, skunk, and bobcats. Golden and bald eagles are found rarely, but hawks are common. Rattlesnakes are common and often encountered on trails by hikers. Critically endangered yellow-legged frogs have declined or vanished from

3080-715: The area. The county office also operates two magnet schools, the International Polytechnic High School and Los Angeles County High School for the Arts . There are a number of private schools in the county, most notably those operated by the Roman Catholic Archdiocese . The county's public education sector is run by numerous school districts with the Los Angeles Unified School District being

3157-437: The county are considered ecologically significant indicators of ecosystem health and may be documented using the iNaturalist app. Los Angeles County is commonly associated with the entertainment and digital media industry; all five major film studios — Paramount Pictures , Sony Pictures , Warner Bros. , Universal Pictures , and Walt Disney Studios —are located within the county. Numerous other major industries also define

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3234-402: The county has an area of 4,751 square miles (12,310 km ), of which 4,058 square miles (10,510 km ) (85%) is land and 693 square miles (1,790 km ) (15%) is water. Los Angeles County borders 70 miles (110 km) of coast on the Pacific Ocean and encompasses mountain ranges, valleys, forests, islands, lakes, rivers, and desert. The Los Angeles River , Rio Hondo , Ballona Creek ,

3311-532: The county is 48.7% White, 11.0% African American, 0.8% Native American, 10.0% Asian, 0.3% Pacific Islander, 23.5% from other races, and 4.9% from two or more races. 44.6% of the population are Hispanic or Latino of any race. The largest European-American ancestry groups are German (6%), Irish (5%), English (4%) and Italian (3%). 45.9% of the population reported speaking only English at home; 37.9% spoke Spanish, 2.22% Tagalog , 2.0% Chinese, 1.9% Korean , 1.87% Armenian , 0.5% Arabic , and 0.2% Hindi . The county has

3388-475: The county's highest peaks are in the San Gabriel Mountains, including Mount San Antonio 10,068 feet (3,069 m) at the Los Angeles– San Bernardino county lines, Mount Baden-Powell 9,399 feet (2,865 m), Mount Burnham 8,997 feet (2,742 m) and Mount Wilson 5,710 feet (1,740 m). Several lower mountains are in the northern, western, and southwestern parts of the county, including

3465-409: The county's wide range of biomes it is possible to see desert bighorn sheep and green sea turtles in the same day, without crossing the county line. The range of habitats in the county is "greater than in many states, with mountains, wetlands, desert, ocean, meadows and chaparral, each with its own endemic species." There are at least 100 species of trees, and 1000 species of non-native plants, in

3542-522: The eastern Antelope Valley – California State Parks' largest in area within the county. The California Poppy Reserve is located in the western Antelope Valley and shows off the State's flower in great quantity on its rolling hills every spring. Los Angeles International Airport (LAX), located in the Westchester district, is the primary commercial airport for commercial airlines in the county and

3619-480: The economy of Los Angeles County, including international trade supported by the Port of Los Angeles and the Port of Long Beach , music recording and production, aerospace and defense, fashion, and professional services such as law, medicine, engineering and design services, financial services. High-tech sector employment within Los Angeles County is 368,500 workers, and manufacturing employment within Los Angeles County

3696-976: The extreme eastern San Gabriels. The range terminates at Cajon Pass, through which runs Interstate 15 , and beyond which rise the even higher San Bernardino Mountains . The Range is bounded on the north by the Antelope Valley and the Mojave Desert and to the south by the communities of Greater Los Angeles . The south side of the range is almost continuously urbanized and includes the Los Angeles city communities of Sylmar , Pacoima , and Sunland-Tujunga , as well as cities and unincorporated areas of San Fernando , La Crescenta , La Cañada Flintridge , Altadena , Pasadena , Sierra Madre , Arcadia , Monrovia , Bradbury , Duarte , Azusa , Glendora , San Dimas , La Verne , Claremont , Upland , Rancho Cucamonga , Fontana , and Rialto . The north side of

3773-527: The fastest in the continental United States and have accelerated in response to the increased frequency of wildfires over the 1900s. Over future centuries, it remains unclear whether soil and brush ecosystems in the San Gabriel mountains will continue to re-establish soil and vegetation after increasing fire and soil-erosion frequencies, or if increasing fire frequencies and erosion will strip soils and permanently alter soil cover and vegetation types across

3850-528: The gorge is the southern "foothills" of the mountains, which rise abruptly 4,000 feet (1,200 m) above the Los Angeles Basin and give rise to the Arroyo Seco , a tributary of the Los Angeles River . Southeast of Big Tujunga Canyon, the southern front range of the San Gabriels gradually grows in elevation, culminating in notable peaks such as Mount Wilson at 5,710 feet (1,740 m). On

3927-430: The highest peak in the range at 10,068 feet (3,069 m). On the north slopes of the San Gabriel crest, the northern ranks of mountains drop down incrementally to the floor of the Mojave Desert in a much more gradual manner than the sheer southern flank. The Angeles Crest Highway , one of the main routes across the San Gabriels, runs through this area from west to east. Little Rock, Big Rock, and Sheep Creeks drain off

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4004-560: The largest Native American population of any county in the nation: according to the 2000 census, it has more than 153,550 people of indigenous descent, and most are from Latin America . As estimated by the Public Policy Institute of California in 2008, Los Angeles County is home to more than one-third of California's undocumented immigrants , who make up more than ten percent of the population. Los Angeles County

4081-761: The largest one running public schools primarily within the city of Los Angeles and its immediately neighboring cities. The county's most visited park is Griffith Park , owned by the city of Los Angeles. The county is also known for the annual Rose Parade in Pasadena, the annual Los Angeles County Fair in Pomona, the Los Angeles County Museum of Art , the Los Angeles Zoo , the Natural History Museum of Los Angeles County ,

4158-434: The majority of which are Catholic. Roman Catholic adherents number close to 40% of the population. There were 202 Jewish synagogues , 145 Buddhist temples, 38 Muslim mosques , 44 Baháʼí Faith worship centers, 37 Hindu temples , 28 Tenrikyo churches and fellowships, 16 Shinto worship centers, and 14 Sikh gurdwaras in the county. The Roman Catholic Archdiocese of Los Angeles has approximately 5 million members and

4235-495: The mountain ecosystem. There are both areas of conifer as well as broadleaf forestation, including the presence of some endemic taxa. Conifer (pine, fir, cedar) and oak forests are most widespread above 5,000 feet (1,500 m) where the precipitation is above 30 inches (760 mm) (the central and eastern high San Gabriels). In the wetter areas, madrone and bay laurel trees also occur in places, and ferns are common. Trees like willow, alder, and cottonwood are also found throughout

4312-508: The mountain, canyon, and desert areas one may find Vasquez Rocks Natural Area Park , where many old Westerns were filmed. Mount Wilson Observatory in the San Gabriel Mountains is open for the public to view astronomical stars from its telescope, now computer-assisted. Many county residents find relaxation in water skiing and swimming at Castaic Lake Recreation Area – the county's largest park by area – as well as enjoying natural surroundings and starry nights at Saddleback Butte State Park in

4389-566: The mountains during big storms often produces flooding in adjacent foothill communities (especially in areas denuded by wildfires). The range is mostly smog-free above 5,000 ft (1,500 m) elevation, above the inversion layer. The large telescope installation at Mt. Wilson is a testimony to the clear atmospheric conditions that prevail, although light pollution from the L.A. basin below has hindered telescope activities in recent decades. The San Gabriel Mountains see wildfires frequently. The fires are often driven by dry Santa Ana wind events in

4466-425: The mountains is Angeles Forest Highway . Angeles Forest Highway begins 11 miles northeast of La Cañada Flintridge at its Angeles Crest Highway junction. Ending near Acton , it allows easy access to the central Forest and the fast-growing Antelope Valley . Because the "Forest" and the 11-mile (18 km) "Crest" portion leading to La Cañada Flintridge is well-traveled by Antelope Valley commuters, its road maintenance

4543-515: The north the range is abruptly dissected by the canyon of the West Fork San Gabriel River. Even further north the range slopes up into the towering main crest of the San Gabriels, a sweeping arc-shaped massif 30 miles (48 km) in length that includes most of the highest peaks in the range: Waterman Mountain , at 8,038 feet (2,450 m); Mount Islip , at 8,250 feet (2,510 m), Mount Baden-Powell , at 9,399 feet (2,865 m), Pine Mountain , at 9,648 feet (2,941 m), and Mount San Antonio ,

4620-402: The northern part of the mountains, forming large alluvial fans as they descend into the Mojave. To the east, the San Andreas Fault cuts across the range, forming a series of long, straight, and narrow depressions, including Swarthout Valley and Lone Pine Canyon. South of Mount San Antonio, San Antonio Creek drains the mountains, cutting the deep San Antonio Canyon. East of San Antonio Canyon,

4697-617: The population. Hispanic or Latino residents of any race numbered 4,687,889 (48%); 36% of Los Angeles County's population was of Mexican ancestry, 3.7% Salvadoran, and 2.2% Guatemalan heritage. The county has a large population of Asian Americans , being home to the largest numbers of Burmese , Cambodian , Chinese , Filipino , Indonesian , Korean , Sri Lankan , Taiwanese , and Thai outside their respective countries. The largest Asian groups in Los Angeles County are 4.0% Chinese, 3.3% Filipino, 2.2% Korean, 1.0% Japanese, 0.9% Vietnamese, 0.8% Indian, and 0.3% Cambodian. The racial makeup of

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4774-434: The range along with the stream courses (riparian habitat), even at lower elevations. Chaparral (dense shrub, brush, and small tree) vegetation is widespread where there is no continuous tall tree cover, especially at lower elevations. Chaparral is highly adapted to fire and replaces trees for decades after fires. There is a subspecies of the Leather Oak which is found only within the San Gabriel Mountains. The Rift Zone along

4851-482: The range gradually loses elevation, and the highest peaks in this section of the mountain range are in the south, rising dramatically above the cities of Claremont , Upland and Rancho Cucamonga . However, there are still several notable peaks in this region, including Telegraph Peak , at 8,985 feet (2,739 m), Cucamonga Peak , at 8,859 feet (2,700 m), and Ontario Peak , rising 8,693 feet (2,650 m). Lytle Creek , flowing generally southeast, drains most of

4928-437: The range is less densely populated and includes the city of Palmdale as well as the small unincorporated towns of Acton , Littlerock , Pearblossom , Valyermo , Llano , Piñon Hills , and Phelan . At the west end of the range lies the city of Santa Clarita . Within the mountains themselves are the small unincorporated communities of Mount Baldy , Wrightwood , Big Pines and Lytle Creek . Melting snow and rain runoff on

5005-425: The range just east of San Fernando, carrying runoff into the San Fernando Valley . Little Tujunga Canyon Road bridges the range in this area, connecting the San Fernando Valley to the Santa Clara River valley in the north. Towering over Big Tujunga Canyon north of Big Tujunga Reservoir , and south of Acton, is Mount Gleason, which at 6,502 feet (1,982 m), is the highest in this region of the San Gabriels. South of

5082-417: The range receives more precipitation than the desert (northern) side. The highest precipitation is found in the central and eastern parts of the range (Mt. Wilson to Mt. San Antonio). Annual precipitation totals are highly variable from year to year, and can be extremely high during wet El Nino years (sometimes over 70 in (1,800 mm), with single storm totals over 10 in (250 mm)). Runoff from

5159-427: The range which extends from the Cajon Pass (Interstate 15) on the east, where the San Gabriel Mountain Range meets the San Bernardino Mountain Range , westward to meet the Santa Susana Mountains at Newhall Pass (Interstate 5). South and east of Santa Clarita and north of San Fernando , the San Gabriel Mountains crest abruptly up to about 4,000 feet (1,200 m). Pacoima and Big Tujunga Canyons cut through

5236-440: The south side of the San Gabriels' highest mountains give rise to its largest river, the San Gabriel River . Just to the west of Mount Hawkins , a north-south divide separates water running down the two main forks of the river and their tributaries. The West Fork, beginning at Red Box Saddle, runs 14 miles (23 km) eastward, and the East Fork, starting north of Mount San Antonio, flows 18 miles (29 km) south and west through

5313-423: The state Legislature to authorize the transfer of all courthouses to the state government in 2008 and 2009 (so that judges would have direct control over their own courthouses). Courthouse security is still provided by the county government under a contract with the state. Unlike the largest city in the United States, New York City , all of the city of Los Angeles and most of its important suburbs are located within

5390-405: The streams due to the loss of suitable habitat. The introduction of invasive predators like trout, which feed on tadpoles, decimated their population. The main road that runs through the San Gabriel Mountains is the Angeles Crest Highway , State Route 2 . It starts in the southwest at the city of La Cañada Flintridge and ends at its junction with State Route 138 , just past Wrightwood , near

5467-428: The summer and fall. Notable wildfires in the San Gabriel Mountains have included the 2009 Station Fire , 2020 Bobcat Fire , and the 2024 Bridge Fire . Granitic and metasedimentary rocks are the primary constituent of the San Gabriel Mountains. Metasedimentary rocks were attached to the North American craton in the Precambrian eon, and granitic rocks formed throughout the Mesozoic as oceanic plates subducted underneath

5544-422: The time of statehood in 1850. The county originally included parts of what are now Kern , San Bernardino , Riverside , Inyo , Tulare , Ventura , and Orange counties. In 1851 and 1852, Los Angeles County stretched from the coast to the state line of Nevada . As the population increased, sections were split off to organize San Bernardino County in 1853, Kern County in 1866, and Orange County in 1889. Before

5621-1022: The urban areas of the county. Charismatic biodiversity indicator species native to the area include three species of amphibian ( Baja California chorus frog , black-bellied slender salamander , western toad ), 14 species of bird ( acorn woodpecker , California quail , canyon wren , cinnamon teal , great blue heron , great horned owl , greater roadrunner , hooded merganser , Northern harrier , red-tailed hawk , red-winged blackbird , spotted towhee , western bluebird , western meadowlark ), nine kinds of invertebrates ( Behr's metalmark , bramble green hairstreak , bumblebees , El Segundo blue butterfly , harvester ants , Lorquin's admiral , North American Jerusalem crickets , Sara orangetip , velvet ants ), five mammals ( bobcat , dusky footed woodrat , gray fox , mountain lion , mule deer ), and six reptiles ( California kingsnake , coachwhip snake , gopher snake , side-blotched lizard , western pond turtle , western rattlesnake ). Any observations of these species within

5698-510: The whole county, like posting of restaurant ratings, must be ratified by the individual city). As an executive body, it can tell the county departments what to do, and how to do it. As a quasi-judicial body, the Board is the final venue of appeal in the local planning process, and holds public hearings on various agenda items. As of 2020, the Board of Supervisors oversees a $ 35.5 billion annual budget and over 112,000 employees. The county government

5775-466: Was 32 years. For every 100 females, there were 97.7 males. For every 100 females age 18 and over, there were 95.0 males. The median personal earnings for all workers 16 and older in Los Angeles County are $ 30,654, slightly below the US median; earnings, however vary widely by neighborhood, race and ethnicity, and gender. The median household income was $ 42,189 and the median family income was $ 46,452. Males had

5852-453: Was again considering plans to re-open the road, after pressure from local communities. In the winter, snowboarding and skiing are quite popular in the San Gabriels, at Mountain High and Mt. Baldy . The two other resorts, Mount Waterman and Kratka Ridge , are rarely open due to insufficient snow. In the summer, canyoneering , hiking, backpacking, picnicking, and camping are some of the activities popular with visitors. From time to time,

5929-568: Was almost evenly split over Proposition 8 , which amended the California Constitution to ban same-sex marriages. The county voted for the amendment 50.04% with a margin of 2,385 votes. The Los Angeles County Superior Court is the county's court of general jurisdiction, while the U.S. District Court for the Central District of California may hear cases where federal jurisdiction is present. Both are headquartered in

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