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92-492: Thirty-one miles (50 km) of Sespe Creek is designated as a National Wild and Scenic River and National Scenic Waterway, and is untouched by dams or concrete channels. It is one of the last wild rivers in Southern California . It is primarily within the southern Los Padres National Forest . The name Sespe can be traced to a Chumash Indian village, called Cepsey , Sek-pe or S'eqpe' ("Kneecap") in

184-461: A USFS Fire Crew Chief, James Jeffery, saw beaver dams about 1.5 miles above Beaver Camp in 1969-1970 (personal communication R. Bisaccia Jan. 2011). Alasdair Coyne reports seeing a beaver dam at Willett Hot Springs about ten miles east of Rose Valley on the Sespe, in 2000 (personal communication A. Coyne Jan. 2011). National Wild and Scenic River The National Wild and Scenic Rivers System

276-475: A considerable range in climate because of differences in topography between one part of the county and another. Rainfall is limited in summer and crops have to be irrigated. The average annual temperature is near 60 °F at low elevations near the ocean, in the 50s over most of the northern two-thirds of the county, and less than 45 °F in the Topatopa Mountains . The annual range in temperature

368-755: A grizzly in the vicinity of the Sespe Hot Springs and Alder Creek. The Sespe is one of southern California's last free flowing southern Steelhead trout ( Oncorhynchus mykiss irideus ) streams. The confluence of Sespe Creek with the Santa Clara River provides an important connection to upland systems and potential migration corridor for four endangered species: southwestern willow flycatcher ( Empidonax traillii extimus ), least Bell's vireo ( Vireo bellii pusillus ), arroyo toad ( Bufo microscaphus californicus ), and California red-legged frog ( Rana aurora draytonii ). The Sespe Creek population

460-426: A household in the county was $ 59,666, and the median income for a family was $ 65,285. Males had a median income of $ 45,310, versus $ 32,216 for females. The per capita income for the county was $ 24,600. About 6.4% of families and 9.2% of the population were below the poverty line , including 11.6% of those under age 18 and 6.3% of those aged 65 or over. According to an updated 2005 US Census, median household income

552-671: Is Chipik , spelled "č'ǝpǝk'" in Barbareño and "tšǝ'pǝk" (Timothy Henry personal communication 2011-01-23), and "č'ɨpɨk" in Ineseño (Samala). Taken together, these facts support the hypothesis that beaver ranged throughout Santa Barbara County, California and Ventura County, California . There is a Beaver Campground on Sespe Creek. Andy Bisaccia recalls taking Boy Scouts camping there between 1938 and 1944 and remembers seeing beaver, their dams, and lodges, and that they could be observed off of Highway 33 in that vicinity. Another eyewitness,

644-556: 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 the Oxnard–Thousand Oaks–Ventura, CA Metropolitan Statistical Area, which is part of the Greater Los Angeles area (Los Angeles–Long Beach, CA Combined Statistical Area). It

736-794: Is also considered the southernmost county along the California Central Coast . Two of the Channel Islands are part of the county: Anacapa Island , which is the most visited island in Channel Islands National Park , and San Nicolas Island . Ventura County was historically inhabited by the Chumash people , who also settled much of Santa Barbara and San Luis Obispo Counties, with their presence dating back 10,000–12,000 years. The Chumash were hunter-gatherers , fishermen, and also traders with

828-517: Is between 70 °F and 80 °F on the Coastal Plain and as much as 100 °F in the interior. For July, the average maximum temperature is between 70 °F and 80 °F on the Coastal Plain but exceeds 90 °F in the upper part of the Ventura- and Cuyama River Valleys. For January, the average minimum temperature is near 40 °F on the coast but in the lower 30s and upper 20s in

920-526: Is in greenbelts between the cities. Because of this, its private low-key location, its country feel, and its proximity to Los Angeles, the Conejo Valley area has become a very attractive place to live. Like most areas of Ventura County, it once had relatively inexpensive real estate, but prices have risen sharply. For example, real estate in Newbury Park has increased in price by more than 250% in

1012-569: Is known for its steep coastal terrain with little beach access, nearby County Line Beach in the south coast community of Solromar is part of the fabled Malibu coastline. Ventura County has plenty of other surf spots along the coast including the notable surf spot, Rincon Point , on the Santa Barbara County-line. The Channel Islands in Ventura County are Anacapa and San Nicholas Islands . Ventura County has

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1104-422: Is not related to the value(s) that made it worthy of designation. For instance, recreation may not be an outstanding value on a river with a recreational classification, nor scenery on a river classified as scenic. Notably, Wild and Scenic Rivers receive the same standard of protection regardless of classification. Ventura County, California Ventura County ( / v ɛ n ˈ t ʊər ə / )

1196-422: Is small, conserving water and obtaining water from additional sources outside of Ventura County are vital concerns. The climate, though mostly mild and dry, varies because of the variations in topography through for instance differences in elevation and physical geography. The Santa Clara River is the principal waterway. Lake Casitas , an artificial reservoir, is the largest body of water. The highest peaks in

1288-618: Is the largest known arroyo toad habitat within its current range. The Sespe Creek watershed has the 53,000-acre (210 km) Sespe Condor Sanctuary created in 1947. It protects wilderness habitat of the critically endangered species , the Gymnogyps californianus (California condor). The discovery of a male adult California golden beaver ( Castor canadensis subauratus ) specimen collected as "wild caught" in May, 1906 (just prior to California instituting statewide protection from 1911–1925) "along

1380-745: The American Museum of Natural History . Although the California Department of Fish and Game re-introduced beaver throughout California the first documented restocking was 1923, well after the 1906 Sespe Creek specimen was collected. The authenticity of the Sespe Creek specimen is supported by reports of beaver historically in the Santa Clara River until Europeans arrived, according to oral Ventureño Chumash history taken by ethnolinguist John Peabody Harrington in

1472-566: The Chumash Wilderness in the northernmost portion, adjacent to Kern County , as well as the large Sespe Wilderness and portions of both the Dick Smith Wilderness and Matilija Wilderness (both of these protected areas straddle the line with Santa Barbara County). All of the wilderness areas are within the jurisdiction of Los Padres National Forest. The coastal plain was formed by the deposition of sediments from

1564-481: The Chumash language in 1791. The village appeared in a Mexican Alta California land grant called Rancho Sespe or Rancho San Cayetano in 1833. The creek remains free from major habitat modifications and is noteworthy for its lack of dams, although one was originally proposed for a site named Topa Topa near Sespe Hot Springs in the Sespe Wilderness . After originating above 5,000 feet (1,500 m) in

1656-532: The Commonwealth of Puerto Rico ; this is less than one-quarter of one percent of the nation's rivers, which flow over 3.5 million miles (5,600,000 kilometers) across the United States. By comparison, more than 75,000 large dams across the country have modified at least 600,000 miles (970,000 km), or about 17 percent of American rivers. The National Wild and Scenic Rivers Act was an outgrowth of

1748-802: The Cuyama River watershed due west of Mt. Pinos in the Sierra Madre mountains, about 35 miles (56 km) from the Sespe Creek headwaters. Additionally, the Hearst Museum in Berkeley has a Ventureño Chumash shaman's rain making kit made from the skin of a beaver tail and a tobacco sack. The shaman, "Somik", produced the artifact in the 1870s and resided at Fort Tejon . It "was not utilized by his descendants". In Janice Timbrook's "Chumash Ethnobotany" she states, based on linguist J. P. Harrington 's interview with Chumash elder Maria Soares, that

1840-692: The Mojave , Yokuts , and Tongva Indians. The Chumash are also known for their rock paintings and for their great basketry. Chumash Indian Museum in Thousand Oaks has several reconstructed Chumash houses ('apa) and there are several Chumash pictographs in the county, including the Burro Flats Painted Cave in Simi Valley. The plank canoe, called a tomol in Chumash , was important to their way of life. Canoe launching points on

1932-829: The National Landscape Conservation System , and the U.S. Fish and Wildlife Service in Alaska . State-managed Wild and Scenic Rivers are subject to the same protections as federally administered rivers. These state rivers can be added to the National System by the Secretary of the Interior following an application by the governor of the state the river flows through. Designated rivers are assigned one or more classifications: Wild, Scenic, or Recreational. These classifications are based on

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2024-539: The Santa Clara River and from the streams of the Calleguas-Conejo drainage system. It has a mean elevation of fifty feet (15 m), but at points south of the Santa Clara River, the elevation is as much as 150 feet (46 m), and at points north of the river, as much as 300 feet (91 m). The coastal plain is generally known as the Oxnard Plain with the part that centers on Camarillo lying east of

2116-634: The U.S. 101 corridor and sent population rising in West County cities as well. The largest population growth there has been in Camarillo, Oxnard, and Ventura. Development in the East County and along the US 101 corridor is rare today, because most of these cities, such as Thousand Oaks and Simi Valley, are approaching build-out. Although the area still has plenty of open space and land, almost all of it

2208-491: The U.S. Congress or the Secretary of the Interior . In 1968, as part of the original act, eight rivers were designated as National Wild and Scenic Rivers ( Clearwater , Eleven Point , Feather , Rio Grande , Rogue , St. Croix , Salmon , and Wolf ). As of November 2018 , 209 rivers, totaling 12,754 miles of river in 40 states and Puerto Rico, have Wild and Scenic status. By comparison, more than 75,000 large dams across

2300-665: The Ventura River is a narrow valley north of Ventura . Ojai Valley is connected to the Ventura River Valley by San Antonio Creek. The small Upper Ojai Valley , east of Ojai Valley and 300 to 500 feet (91 to 152 m) higher, drains to the Ventura River on the west and to Santa Paula Creek on the east. Ojai and Upper Ojai Valleys are surrounded by mountains and are rich agricultural areas. The Ventura River flows south and drains an area of 226 square miles (590 km ). Over South Mountain and Oak Ridge, south of

2392-840: The 50th Anniversary of the Wild and Scenic Rivers Act. On August 2, 2018, 20 miles (32 km) of East Rosebud Creek in Montana were designated as a Wild and Scenic, the first Wild and Scenic designation in Montana in over 40 years. Designation as a Wild and Scenic River specifically protects the free-flowing nature of rivers in both federal and non-federal areas, something the Wilderness Act and other federal designations cannot do. Despite misplaced fears, WSR designation does not alter private property rights. Federally administered National Wild and Scenic Rivers are managed by one or more of

2484-482: The Chumash language that was spoken in Ventura County was Ventureño . Several place names in the county has originated from Chumash, including Ojai , which means moon, and Simi Valley, which originates from the word Shimiyi and refers to the stringy, thread-like clouds that typify the region. Others include Point Mugu from the word Muwu (meaning "beach"), Saticoy from the word Sa'aqtiko'y (meaning "sheltered for

2576-636: The Conejo Grade. Geographically East County is the end of the Santa Monica Mountains , in which the Conejo Valley is located, and where there is a considerable increase in elevation. Communities which are considered to be in the East County are Thousand Oaks , Newbury Park , Lake Sherwood , Hidden Valley , Santa Rosa Valley, part of Westlake Village, Oak Park , Moorpark, and Simi Valley. A majority of these communities are in

2668-476: The Conejo Valley. West County, which is everything west of the Conejo Grade, consists of communities such as Camarillo , Oxnard, Somis, Point Mugu, Port Hueneme, Ventura, Ojai, Santa Paula, and Fillmore. West County consists of some of the first developed cities in the county. The largest beach communities are located in West County on the coastline of the Channel Islands Harbor. Starting in

2760-481: The Indians near Tehachapi and also the Chumash believed that "a willow stick that had been cut by a beaver was thought to have the power to bring water. The Chumash would treat the stick with 'ayip ( a ritually powerful substance made from alum) and then plant it in the ground to create a permanent spring of water". In addition the Barbareño and Ventureño Chumash had a Beaver Dance. Finally, the Chumash word for beaver

2852-703: The King of Spain was now owned by the nation of Mexico. By the 1830s, Mission San Buenaventura was in a decline with fewer neophytes joining the mission. The number of cattle owned by the mission dropped from first to fifteenth ranking in the California Missions. The missions were secularized by the Mexican government in 1834 . The Mexican governors began granting land rights to Mexican Californians, often retiring soldiers. By 1846, there were 19 rancho grants in Ventura County. In 1836, Mission San Buenaventura

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2944-703: The Las Posas-Simi area from the Santa Rosa Valley and Tierra Rejada Valley. The intermountain valley of the Santa Clara River is the most prominent valley in the county and trends east–southwest. The Santa Clara River drains an area of 1,605 square miles (4,160 km ) and flows from its headwaters in Los Angeles to where it empties into the Pacific. Its principal tributaries are Piru Creek , Santa Paula Creek, and Sespe Creek . The valley of

3036-635: The Mission. Fremont and the Battalion continued south to sign the Treaty of Cahuenga with General Andrés Pico . The Treaty of Guadalupe Hidalgo formally transferred California to the United States in 1848. By 1849, a constitution had been adopted for the California territory. The new Legislature met and divided the pending state into 27 counties. At the time, the area that would become Ventura County

3128-500: The National Wild and Scenic Rivers System to protect and enhance rivers found to be regionally and nationally significant. Rivers may be designated by Congress or, if certain requirements are met, the Secretary of the Interior . Each designated river is administered by either a federal, state, or tribal agency, or as a partnership between any number of these government entities and local NGOs . Designated segments need not include

3220-409: The Oxnard–Thousand Oaks–Ventura, CA Metropolitan Statistical Area. The United States Census Bureau ranked the Oxnard–Thousand Oaks–Ventura, CA Metropolitan Statistical Area as the 66th most populous metropolitan statistical area of the United States as of July 1, 2012. The Office of Management and Budget has further designated the Oxnard–Thousand Oaks–Ventura, CA Metropolitan Statistical Area as

3312-622: The Revelon Slough is called Pleasant Valley. Most of the arable land in the county is found on the coastal plain. Small coastal mountains rim Ventura County on its landward side. They range in elevation from 50 feet (15 m) along the coast south of the coastal plain, to about 3,100 feet (940 m) in the Santa Monica Mountains. The Santa Ynez Mountains, the Topatopa Mountains , and the Piru Mountains make up

3404-657: The Santa Clara River, are Las Posas Valley and Simi Valley. Las Posas Valley extends eastward from the Oxnard Plain almost to Simi Valley, which is in the east end of Ventura County. The city of Simi Valley is bounded on the east by the Santa Susana Mountains and on the south by the Simi Hills. To the south, over the Camarillo- and Las Posas Hills, are Santa Rosa- and Tierra Rejada Valleys, which extend from Camarillo eastward for ten miles (16 km). In

3496-592: The Santa Clarita Valley killing as many as 600 people, destroying 1,240 homes and flooding 7,900 acres (32 km ) of land, devastating farm fields and orchards. This was the single largest disaster to strike Ventura County and the second largest, in terms of lives lost, in the state. Ventura County can be separated into two major parts, East County and West County, which are divided by the Conejo Grade . East County consists of all cities east of

3588-673: The Sespe River in Ventura County " is physical evidence that golden beaver were historically extant in coastal streams in southern California. The skull of the Sespe Creek specimen is housed at the Museum of Vertebrate Zoology in Berkeley, California and was collected by Dr. John Hornung, of Ventura, California, who assembled a large private mammal collection of over 2,000 skulls and made major specimen donations to museums including

3680-769: The Sierra Madre Mountains in the northwest corner of the Ojai Ranger District, about 75 percent of the Sespe Creek subwatershed is characterized by numerous rugged slopes and canyon walls of the southern Pine Mountains. It flows intermittently but is characterized by a series of permanent deep pools. Major tributaries include the Lion Canyon, Hot Springs Canyon, Timber, West Fork Sespe and Little Sespe Creeks, although over 30 creeks and springs nourish it. Sespe Creek receives most of its rainfall between January and April, and furnishes 40% of

3772-449: The annual total is more than thirty-three inches. The drier parts of the county get less than five inches of rain annually, and the higher and wetter parts get more than 60 inches annually. Measureable amounts of rainfall in Ventura County are reported on thirty to thirty-five days annually, and half an inch or more on six to twelve days annually. In the northern parts of Ventura County, snowfall averages five inches or more per year, and along

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3864-497: The benefit and enjoyment of present and future generations. The Congress declares that the established national policy of dams and other construction at appropriate sections of the rivers of the United States needs to be complemented by a policy that would preserve other selected rivers or sections thereof in their free-flowing condition to protect the water quality of such rivers and to fulfill other vital national conservation purposes." (Wild & Scenic Rivers Act) The Act established

3956-504: The census of 2000, there were 753,197 people, 243,234 households, and 182,911 families living in the county. The population density was 408 inhabitants per square mile (158/km ). There were 251,712 housing units at an average density of 136 per square mile (53/km ). The racial makeup of the county was 69.9% White , 5.4% Asian , 2.0% Black or African American , 0.9% Native American , 0.2% Pacific Islander , 17.7% from other races , and 3.9% from two or more races. About one third (33.4%) of

4048-425: The city remains officially known as San Buenaventura, it is more commonly referred to as Ventura. The rail line to Northern California originally went through Saugus , Fillmore and Santa Paula, providing a boom to those communities along the line. In 1905, Tunnel #26 was completed between Chatsworth and Corriganville near Simi Valley, shortening the rail route. At a length of 7,369 feet (2,246 m), Tunnel #26

4140-677: The country have modified at least 600,000 miles, or about 17%, of American rivers. Selected rivers in the United States are preserved for possessing Outstandingly Remarkable Values (ORVs) that fall into the 8 categories: Scenic, Recreation, Geologic, Fish, Wildlife, Historic, Culture, or Other similar values. These values can be considered synonymous with ecosystem services , or those goods and services that nature provides freely and that ultimately benefit society. Rivers (or sections of rivers) so designated are set out for protection and enhancement in perpetuity by preserving their free-flowing condition from dams and development that would otherwise diminish

4232-403: The county government is responsible for housing goals in unincorporated areas. Several affordable housing groups that are actively working on building housing for veterans and low income people have long waiting lists. Farmworker housing also has waiting lists though designated units continue to be built. The United States Office of Management and Budget has designated Ventura County as

4324-537: The county include Mount Pinos (8,831 ft; 2,692 m), Frazier Mountain (8,017 ft; 2,444 m), and Reyes Peak (7,525 ft; 2,294 m) in the Transverse Ranges . The uplands are well-timbered with coniferous forests , and receive plentiful snow in the winter. Mount Pinos is sacred to the Chumash Indians. It is known to them as Iwihinmu, and was considered to be the center of

4416-497: The county's total area is made up of national forest. Of the land outside of national forest land, approximately 59 percent is agricultural and 17.5 percent urban. North of Highway 126, the county is mountainous and mostly uninhabited, and contains some of the most unspoiled, rugged and inaccessible wilderness remaining in southern California. Most of this land is in the Los Padres National Forest , and includes

4508-412: The developmental character of the river's surroundings on the date of designation. Wild rivers are the most remote and undeveloped while Recreational rivers often have many access points, roads, railroads, bridges, and homes located within the designated corridor. Scenic rivers tend to fall somewhere between the Wild and Recreational level of development. It is important to note that a river's classification

4600-653: The early intellectual founders of the Franciscan order. The town that grew up around the mission was originally named San Buenaventura (and retains the name officially), it has been known as Ventura since 1891. In the 1790s, the Spanish Governor of California began granting land concessions to Spanish Californians who were often retiring soldiers. These concessions were known as ranchos and consisted of thousands of acres of land that were used primarily as ranch land for livestock. In Ventura County, Rancho Simi

4692-424: The early twentieth century. The beaver comes and gnaws the tree on the side towards which it leans, and at last falls over. The tree is leaning towards our house. I am beginning to fear that it will fall on us. The beaver builds its house in the river or the cienegas in the time of our ancestors. There were beavers at Ventura and also at Saticoy . Also there is a Chumash pictograph of a beaver at Painted Rock in

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4784-417: The entire river and may include headwaters and tributaries. For federally administered rivers, the designated boundaries generally average one-quarter mile on either bank in the lower 48 states and one-half mile on rivers outside national parks in Alaska in order to protect river-related values. As of August 2018, the National System protects over 12,700 miles (20,400 km) of 209 rivers in 40 states and

4876-484: The expedition, Father Juan Crespí , kept a journal of the trip and noted that the area was ideal for a mission to be established and it was a "good site to which nothing is lacking". Also on this expedition was Father Junípero Serra , who later founded a mission on this site. On March 31, 1782, the Mission San Buenaventura was founded by Father Serra. It is named after Saint Bonaventure , one of

4968-506: The fire caused over $ 2.176 billion (2018 USD) in damages, including more than $ 204.5 million in suppression costs, becoming the seventh-most destructive wildfire in state history. The agriculture industry suffered at least $ 171 million in losses due to the Thomas Fire. Southern California Edison paid the county over $ 11 million in claims related to damages and costs since its equipment was likely associated with one ignition point of

5060-419: The fire near Santa Paula. According to the U.S. Census Bureau , the county has a total area of 2,208 square miles (5,720 km ), of which 1,843 square miles (4,770 km ) is land and 365 square miles (950 km ) (16.5%) is water. Parts of the county are on the Oxnard Plain which includes the cities of Oxnard , Camarillo , Port Hueneme and much of Ventura . Other cities and communities lie in

5152-488: The first high school opening in 1890. Other towns were being established in the county. A plan for Hueneme (later Port Hueneme) was recorded in 1874, and Santa Paula 's plan was recorded in 1875. Along the banks of the Santa Clara River, the township of New Jerusalem (which would eventually be named El Rio ) was founded in 1875 by the owner of general store named Simon Cohen who became its first postmaster and banker in 1882. The community of Nordhoff (later renamed Ojai )

5244-678: The four principal land-managing agencies of the federal government. Of the 209 National Wild and Scenic Rivers, the majority are managed by the United States Forest Service , followed by the National Park Service; ten of those managed by the NPS are official units , while most are part of other parks. The remaining WSR are managed under the Bureau of Land Management 's National Conservation Lands, originally called

5336-451: The gorge impossible to maintain, has made the area an apparent refuge for a number of species who were extirpated elsewhere in southern California, including the California condor , southern steelhead trout and possibly the California golden beaver . In addition, the California grizzly bear ( Ursus arctos horribilis ) held out in the Sespe area until at least 1905, when a forest ranger reported tracks and separately hunters claimed they saw

5428-449: The height of the United States environmental era, states: "It is hereby declared to be the policy of the United States that certain selected rivers of the Nation which, with their immediate environments, possess outstandingly remarkable scenic, recreational, geologic, fish and wildlife, historic, cultural or other similar values, shall be preserved in free-flowing condition, and that they and their immediate environments shall be protected for

5520-476: The hills north of Ventura, was producing 90,000 barrels (14,000 m ) of oil a day, with annual production of over 1.5   million barrels. More oil fields came online in the 1920s and 1930s, with the Rincon field , the second largest, in 1927, and the adjacent San Miguelito in 1931. In the early hours of the morning of March 12–13, 1928, the St. Francis Dam collapsed, sending nearly 12,500 million U.S. gallons (47 gigaliters) of water rushing through

5612-617: The hills south of Santa Rosa Valley is the broad Conejo Valley. Santa Rosa Valley, Conejo Valley, Simi Valley, and Tierra Rejada Valley are drained by Calleguas Creek and its principal tributary, Conejo Creek. These creeks originate in the Santa Susana and Santa Monica Mountains . The county's diverse 43-mile (69 km) coastline features a variety of terrain. There are many State beaches: Emma Wood , San Buenaventura , McGrath , and Mandalay State Beach . Other beaches include Channel Islands Beach , Solimar Beach , Oxnard Beach Park , and Silver Strand Beach . While Point Mugu State Park

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5704-400: The intermountain valleys of the Transverse Range. The Santa Clara River Valley is the most prominent valley, while other valleys include Conejo Valley , Simi Valley , Santa Rosa Valley , Tierra Rejada Valley and Las Posas Valley. Other parts of the county are on small coastal mountains, such as the Santa Ynez Mountains , Simi Hills , Santa Monica Mountains and the Piru Mountains. Most of

5796-486: The last 10 years. The Thomas Fire was a massive wildfire that affected Ventura and Santa Barbara Counties, and one of multiple wildfires that ignited in Southern California in December 2017. It burned approximately 281,893 acres (440 sq mi; 114,078 ha), becoming the largest wildfire in modern California history , before it was fully contained on January 12, 2018. The Thomas Fire destroyed at least 1,063 structures, while damaging 280 others; and

5888-438: The lingering smell in the dirt to uncover artifacts that showed heavy utilization by mission inhabitants, Indians, early settlers and Spanish and Mexican soldiers. The Mexican–American War began in 1846 but its effect was not felt in Ventura County until 1847. In January of that year, Captain John C. Frémont led the California Battalion into San Buenaventura to find that the Europeans had fled, leaving only Native Americans in

5980-416: The mainland for trade with the Chumash of the Channel Islands were located at the mouth of the Ventura River , Mugu Lagoon and Point Hueneme. This has led to speculations among archeologists of whether the Chumash could have had a pre-historic contact with Polynesians . According to diachronic linguistics , certain words such as tomolo'o (canoe) could be related to Polynesian languages . The dialect of

6072-512: The mid-20th century, there was a large growth in population in the East County, moving from the San Fernando Valley in Los Angeles and out into the Conejo and Simi Valleys. Part of the Conejo Valley is situated in Los Angeles County . This part consists of Calabasas , Hidden Hills , Agoura Hills , Agoura , and Westlake Village . The other half of the Conejo Valley, which belongs to Ventura County, consists of Lake Sherwood , Hidden Valley , Oak Park , Thousand Oaks , and Newbury Park , which

6164-569: The nation's rivers. Many waterways and the fish in them were toxic, rendering them unusable by surrounding communities. Populations of aquatic species were declining and people were being relocated from their communities due to rampant dam building. All across the country people were writing letters imploring the President and First lady to protect their beloved rivers. Ultimately, the act was sponsored by Sen. Frank Church ( D - Idaho ) and signed into law by President Lyndon B. Johnson on October 2, 1968. A river , or river section, may be designated by

6256-689: The northern border and Mount Pinos, more than twenty inches. Automobile emissions account for most of the air pollution . Other sources include chemical plants , gasoline stations , paint and cleaning products . Rivers in Ventura County include: The 2010 United States Census reported that Ventura County had a population of 823,318. The racial makeup of Ventura County was 565,804 (68.7%) White , 15,163 (1.8%) African American , 8,068 (1.0%) Native American , 55,446 (6.7%) Asian , 1,643 (0.2%) Pacific Islander , 140,253 (17.0%) from other races , and 36,941 (4.5%) from two or more races. Hispanic or Latino of any race were 331,567 persons (40.3%). As of

6348-464: The northern boundary of the coastal plain, the Santa Susana Mountains are alongside the eastern boundary of the county, and the Simi Hills and the Santa Monica Mountains are along the southern border with Los Angeles County . South Mountain and Oak Ridge are low and long mountains that separate Santa Clara Valley from the Las Posas Valley and Simi Valley . The Camarillo Hills and the Las Posas Hills extend from Camarillo to Simi Valley and separate

6440-412: The northern parts of Ventura County. No temperature data are available for the highest point in the county, Mount Pinos . The length of the growing season ranges more than 300 days near the coast to less than 175 days in the coldest part in northern Ventura County. In both the northern and southern ends of the county, the annual precipitation totals between ten and fifteen inches. In the Topatopa Mountains,

6532-406: The petroleum products under Ventura County but none were financially successful, and the oil speculators eventually changed from oil to land development. In 1913, oil exploration began in earnest, with Ralph Lloyd obtaining the financial support of veteran oil man Joseph B. Dabney. Their first well, named "Lloyd No. 1", was started on January 20, 1914. The well struck oil at 2,558 feet (780 m) but

6624-537: The population is Hispanic or Latino of any race. 9.8% were of German, 7.7% English and 7.1% Irish ancestry according to Census 2000 . 67.1% spoke English, 26.2% Spanish and 1.5% Tagalog as their first language. There were 243,234 households, of which 39.7% had children under the age of 18 living with them, 59.5% were married couples living together, 10.9% had a female householder with no husband present, and 24.8% were non-families. 18.9% of all households were made up of individuals, and 7.4% had someone living alone who

6716-613: The population of Ventura County lives in the southern portion of the county. The major population centers are the Oxnard Plain and the Simi and Conejo Valleys. In local media, the county is usually split between the eastern portion, generally associated with the San Fernando Valley , and the western portion, often referred to as “Oxnard-Ventura". To the east is Los Angeles County . Because the total amount of precipitation

6808-523: The quality of their remarkable values. National Wild and Scenic designation essentially vetoes the licensing of new dams on, or directly affecting the designated section of river. It also provides strong protection against federally funded bank and channel alterations that adversely affect river values, protects riverfront public lands from new oil, gas, and mineral development, and creates a federal reserved water right to protect flow-dependent values such as fish habitat. In 2018, America continues to celebrate

6900-556: The recommendations of a Presidential commission, the Outdoor Recreation Resources Review Commission (ORRRC). Among other things, the commission recommended that the nation protect wild rivers and scenic rivers from development that would substantially change their free-flowing nature and values. At this time, the country was also experiencing rapid degradation of its water resources due to municipal and industrial effluent being released into

6992-640: The stream is designated as a wild trout stream from the Lion Camp area in the upper subwatershed downstream to the Los Padres National Forest boundary north of and near the city of Fillmore . The Sespe Creek flows through habitas of the California montane chaparral and woodlands ecoregion , and Riparian woodlands . The inaccessibility of the Sespe Creek backcountry, related to the Sespe gorge and flash floods which make roads through

7084-471: The town of San Buenaventura was incorporated, becoming the first officially recognized town in what would become Ventura County. On January 1, 1873, Ventura County was officially split from Santa Barbara County, bringing a flurry of change. That same year, a courthouse and wharf were built in San Buenaventura. A bank was opened and the first public library was created. The school system grew, with

7176-464: The train stop. That community, now bearing the name of the factory shortened to the one word train stop Oxnard, has become the largest city in Ventura County. Oil has been known in Ventura County since before the arrival of the Europeans, as the native Chumash people used tar from natural seeps as a sealant and waterproofing for baskets and canoes. In the 1860s, several attempts were made to harvest

7268-538: The universe; being the highest peak in the vicinity, it has unimpeded views in three directions. The USDA Economic Research Service rated Ventura County the most desirable county to live in the 48 contiguous states, using six metrics of climate ("mild, sunny winters, temperate summers, low humidity"), topographic variation, and access to water, "that reflect environmental qualities most people prefer." There are 555,953 acres (224,986 ha) outside of national forest land in Ventura County, which means that 53 percent of

7360-454: The water flowing in the Santa Clara River. Much of Sespe Creek is protected within the Los Padres National Forest . The approximately 219,700-acre (889 km) Sespe Wilderness encompasses 31.5 miles (50.7 km) of Sespe Creek. Established in 1992, the wilderness area contains a 53,000-acre (210 km) Sespe Condor Sanctuary. Approximately 10.5 miles (16.9 km) of upper Sespe Creek have been designated as wild and scenic. Furthermore,

7452-404: The way for development westward. The communities that have seen the most substantial development are Calabasas, Hidden Hills, Agoura Hills, Westlake Village, Thousand Oaks, and Newbury Park. The neighboring East County area of Simi Valley saw its already considerable population of nearly 60,000 inhabitants in 1970 grow to over 100,000 over the following two decades. Development moved farther down

7544-540: The wind"), and Sespe Creek from the word S'eqp'e (meaning "kneecap"). In October 1542, the expedition led by Juan Rodríguez Cabrillo anchored in an inlet near Point Mugu ; its members were the first Europeans to arrive in the area that would become Ventura County. Active occupation of California by Spain began in 1769. Gaspar de Portolà led a military expedition by land from San Diego to Monterey , passing through Ventura County in August of that year. A priest with

7636-591: Was $ 66,859, while the mean was $ 85,032. Per capita income was up to $ 29,634, making it the 6th wealthiest county in California. Ventura County typically has limited housing inventory, making it a consistently expensive location in Southern California, where it is usually the third-most-expensive county behind Orange and Los Angeles counties. As of March 2018 , the county was not on track to meet its state-mandated housing goals. Individual cities are responsible for meeting their assigned housing goals, while

7728-448: Was 65 years of age or older. The average household size was 3.04 and the average family size was 3.46. In the county, the population was spread out, with 28.4% under the age of 18, 9.0% from 18 to 24, 30.7% from 25 to 44, 21.7% from 45 to 64, and 10.2% who were 65 or older. The median age was 34 years. For every 100 females, there were 99.7 males. For every 100 females age 18 and over, there were 97.5 males. The median income for

7820-688: Was created by the Wild and Scenic Rivers Act of 1968 (Public Law 90-542 ), enacted by the U.S. Congress to preserve certain rivers with outstanding natural, cultural, and recreational values in a free-flowing condition for the enjoyment of present and future generations. The Act is notable for safeguarding the special character of these rivers, while also recognizing the potential for their appropriate use and development. It encourages river management that crosses political boundaries and promotes public participation in developing goals for river protection. The Act, signed into law by President Lyndon B. Johnson in

7912-587: Was destroyed when it went wild. Other wells met a similar fate, until 1916, when a deal was struck with the Shell Oil Company . 1916 was the year that the large South Mountain Oil Field was discovered; other deals followed with General Petroleum in 1917 and Associated Oil Company in 1920. At its peak, the largest oil field in the county, the Ventura Avenue oilfield , discovered in 1919 in

8004-480: Was formerly an unincorporated area that is now the most westerly part of Thousand Oaks. Many working-class people migrated to this area during the 1960s and 1970s out of East and Central Los Angeles . As a result, there was a large growth in population into the Conejo Valley and into Ventura County through the U.S. Route 101 corridor. Making the U.S. 101 a full freeway in the 1960s, and the expansions that followed, helped make commuting to Los Angeles easier and opened

8096-573: Was granted in 1795 and Rancho El Conejo in 1802. Fernando Tico was granted Ojai and part of Ventura by Gov. Alvarado. In 1822, California was notified of Mexico's independence from Spain and the Governor of California , the Junta, the military in Monterey and the priests and neophytes at Mission San Buenaventura swore allegiance to Mexico on April 11, 1822. California land that had been vested in

8188-454: Was started in 1874. Bardsdale , Fillmore , Piru , and Montalvo were established in 1887. 1892 saw Simi (later Simi Valley), Somis , Saticoy , and Moorpark . Oxnard was a latecomer, not being established until 1898. The Southern Pacific Railroad laid tracks through San Buenaventura in 1887. For convenience in printing their timetables, Southern Pacific shortened San Buenaventura to Ventura. The Post Office soon followed suit. While

8280-507: Was the longest tunnel ever constructed in its day. This tunnel joined to the railroad spur coming the other direction from Montalvo through Camarillo, Moorpark and Simi Valley, making the contemporary main line used today. One stop along the way, at a 90-degree turn, was at a sugar beet processing factory. The factory bore the name of its absentee owners, the Oxnard Brothers. A small community of farm and factory workers grew near

8372-416: Was the southern part of Santa Barbara County . The 1860s brought many changes to the area. A drought caused many of the ranchos to experience financial difficulties and most were divided, sub-divided and sold. Large sections of land were bought by eastern capitalists based on favorable reports of petroleum deposits. A United States Post Office was opened at Mission San Buenaventura in 1861. On April 1, 1866,

8464-535: Was transferred from the Church to a secular administrator. The natives who had been working at the mission gradually left to work on the ranchos. By 1839, only 300 Indians were left at the Mission and it slipped into neglect. Several outhouses dating back to the 1800s were discovered in July 2007, at a site that had been cleared to prepare for development. The area proved to be a treasure trove for archaeologists who braved

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