Misplaced Pages

#319680

127-607: Island Mountain is a named peak in the Island Mountain range which covers an area from Mendocino County into Trinity County. The highest point of this range, and its official centroid, is a benchmark called "South Peak" on the unnamed tallest point which is in Mendocino County. Island Mountain in Trinity County was named by settlers in the 1850s because it is nearly isolated by water from two creeks and

254-778: A World Series game between two Bay Area baseball teams, the Loma Prieta earthquake struck and caused widespread infrastructural damage, including the failure of the Bay Bridge , a major link between San Francisco and Oakland . Even so, the Bay Area's technology industry continued to expand and growth in Silicon Valley accelerated: the United States census confirmed that year that San Jose had overtaken San Francisco in terms of population. The commercialization of

381-518: A 58% majority vote, making it the first county in the United States to declare prosecution of small-scale marijuana offenses the "lowest priority" for local law enforcement. Measure G does not protect individuals who cultivate, transport or possess marijuana for sale. However, Measure G was passed at the local government level affecting only Mendocino County, and therefore does not affect existing state or federal laws. The city of Berkeley has had

508-453: A complex multimodal transportation network. The earliest archaeological evidence of human settlements in the Bay Area dates back to 8000–10,000 BC. The oral tradition of the Ohlone and Miwok people suggests they have been living in the Bay Area for several hundreds if not thousands of years. The Spanish empire claimed the area beginning in the early period of Spanish colonization of

635-472: A female householder with no husband present, and 34.3% were non-families. 27.0% of all households were made up of individuals, and 10.4% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.04. In the county, the population was spread out, with 25.5% under the age of 18, 8.1% from 18 to 24, 25.6% from 25 to 44, 27.1% from 45 to 64, and 13.6% who were 65 years of age or older. The median age

762-643: A few years earlier, which now provides drinking water for 2.4 million people in the Bay Area. By 1915, the city had been sufficiently rebuilt and advertised itself to the world during the Panama Pacific Exposition that year, although the effects of the quake hastened the loss of the region's dominant status in California to the Los Angeles metropolitan area . During the 1929 stock market crash and subsequent economic depression , not

889-496: A first in the United States, and four years later a majority of voters in the Bay Area rejected California Proposition 8 , which sought to constitutionally restrict marriage to opposite-sex couples but ultimately passed statewide. The Bay Area was also the center of contentious protests concerning racial and economic inequality . In 2009, an African-American man named Oscar Grant was fatally shot by Bay Area Rapid Transit police officers , precipitating widespread protests across

1016-755: A major domestic military and naval hub, with large shipyards constructed in Sausalito and across the East Bay to build ships for the war effort. The Army's San Francisco Port of Embarkation was the primary origin for Army forces shipping out to the Pacific Theater of Operations . That command consisted of fourteen installations including Fort Mason, the Oakland Army Base , Camp Stoneman and Fort McDowell in San Francisco Bay and

1143-474: A rate of one thousand per week on their way to California's interior, including the first large influx of Chinese immigrants to the U.S. The rush was so great that vessels were abandoned by the hundreds in San Francisco's ports as crews rushed to the goldfields. The unprecedented influx of new arrivals spread the nascent government authorities thin, and the military was unable to prevent desertions. As

1270-466: A result, numerous vigilante groups formed to provide order, but many tasked themselves with forcibly moving or killing local Native Americans , and by the end of the Gold Rush, two thirds of the indigenous population had been killed. During this same time, a constitutional convention was called to determine California's application for statehood into the United States. After statehood was granted,

1397-499: A significant earthquake hazard. Among the more well-understood faults, as of 2014, scientists estimate a 72% probability of a magnitude 6.7 earthquake occurring along either the Hayward, Rogers Creek, or San Andreas fault, with an earthquake more likely to occur in the East Bay's Hayward Fault. Two of the largest earthquakes in recent history were the 1906 San Francisco earthquake and the 1989 Loma Prieta earthquake . The Bay Area

SECTION 10

#1732780434320

1524-647: A similar law (known as the Berkeley Marijuana Initiative II) since 1979 which has generally been found to be unenforceable. In 2008, the Mendocino County Board of Supervisors placed Measure B on the June 3 county-wide ballot. After three months of hard-fought campaigning and national attention, voters narrowly approved "B", which repealed the provisions of 2000's Measure G. However, opponents of Measure B intend to continue

1651-535: A single San Francisco-based bank failed, while the region attempted to spur job growth by simultaneously undertaking two large infrastructure projects: construction of the Golden Gate Bridge , which would connect San Francisco with Marin County , and the Bay Bridge , which would connect San Francisco with Oakland and the East Bay. After the United States joined World War II in 1941, the Bay Area became

1778-622: A single county, Alameda. Diverse assemblages adjoin in complex arrangements due to offsets along the many faults (both active and stable) in the area. As a consequence, many types of rock and soil are found in the region. The oldest rocks are metamorphic rocks that are associated with granite in the Salinian Block west of the San Andreas Fault . These were formed from sedimentary rocks of sandstone , limestone , and shale in uplifted seabeds. Volcanic deposits also exist in

1905-410: A stampede of wealth-seekers descending on Sutter's Mill . The Bay Area's population quickly emptied out as laborers, clerks, waiters, and servants joined the rush to find gold, and California's first newspaper, The Californian , was forced to announce a temporary freeze in new issues due to labor shortages. By the end of 1849, news had spread across the world and newcomers flooded into the Bay Area at

2032-675: A storm sank the San Agustin and killed between 7 and 12 people. On December 8, 80 remaining crew members set sail on the San Buenaventura , a launch which was partially constructed en route from the Philippines . Seeking the fastest route south, the expedition sailed past the Golden Gate, arriving at Puerto de Chacala, Mexico on January 17, 1596. The Bay Area estuaries remained unknown to Europeans until members of

2159-550: Is a heritage railway (that formerly connected Fort Bragg, California with Willits ) using steam locomotives. For commercial service, passengers in Mendocino County need to go to Eureka , one county to the north in Humboldt County , or to Sonoma County Airport in Santa Rosa , Sonoma County , one county to the south. More comprehensive service is available from Sacramento to the east or San Francisco , well to

2286-787: Is accepted by most local governmental agencies including San Francisco Regional Water Quality Control Board , Bay Area Air Quality Management District , the San Francisco Bay Restoration Authority , the Metropolitan Transportation Commission , and the Association of Bay Area Governments , the latter two of which partner to deliver a Bay Area Census using the nine-county definition. Various U.S. Federal government agencies use definitions that differ from their local counterparts' nine-county definition. For example,

2413-527: Is actually located in adjacent Humboldt County ), which was probably named in honor of either Antonio de Mendoza , Viceroy of New Spain , 1535–1542 (who sent the Juan Rodríguez Cabrillo Expedition to this coast in 1542), or Lorenzo Suárez de Mendoza , Viceroy from 1580 to 1583. Mendocino is the adjectival form of the family name of Mendoza . Neither Spanish nor Mexican influence extended into Mendocino County beyond

2540-403: Is additionally known for the complexity of its landforms, the result of millions of years of tectonic plate movements. Because the Bay Area is crossed by six major earthquake faults , the region is particularly exposed to hazards presented by large earthquakes. The climate is temperate and conducive to outdoor recreational and athletic activities such as hiking, running, and cycling. The Bay Area

2667-867: Is home to a complex network of watersheds, marshes, rivers, creeks, reservoirs, and bays that predominantly drain into the San Francisco Bay and Pacific Ocean. The largest bodies of water in the Bay Area are the San Francisco , San Pablo , and Suisun estuaries. Major rivers of the North Bay include the Napa River , the Petaluma River , the Gualala River , and the Russian River ; the former two drain into San Pablo Bay ,

SECTION 20

#1732780434320

2794-474: Is host to five professional sports teams and is a cultural center for music, theater, and the arts. It is also host to numerous higher education institutions, including research universities such as the University of California, Berkeley , and Stanford University , the latter known for helping to create the high tech center called Silicon Valley . Home to 101 municipalities and 9 counties, governance in

2921-468: Is largely influenced by the cold California Current , which penetrates the natural mountainous barrier along the coast by traveling through various gaps. In terms of precipitation , this means that the Bay Area has pronounced seasons. The winter season, which roughly runs between November and March, is the source of about 82% of annual precipitation in the area. In the South Bay and further inland, while

3048-405: Is represented by Glenn McGourty, and serves the central-eastern region of the county, including Potter Valley , Redwood Valley , Calpella , and Talmage . The second district, represented by Maureen Mulheren, serves Ukiah . The third district, in the northeastern quadrant of the county from Willits north to Laytonville and Covelo , is represented by John Haschak. The fourth district covers

3175-700: The Anderson Valley Advertiser , the Willits Weekly and the Independent Coast Observer. Four formerly independent newspapers are now owned by the national conglomerate media company Digital First Media , they are: The Ukiah Daily Journal, The Mendocino Beacon , the Willits News , and The Fort Bragg Advocate. These four papers have seen a precipitous decline in the size of editorial staff and in coverage over

3302-604: The Bank of Italy (now known as the Bank of America ), had managed to retrieve the money from his bank's vaults before fires broke out through the city and was the only bank with liquid funds readily available and was instrumental in loaning out funds for rebuilding efforts. Congress immediately approved plans for a reservoir in Hetch Hetchy Valley in Yosemite National Park , a plan they had denied

3429-548: The California Secretary of State reports that Mendocino County has 54,505 registered voters. Of those, 26,648 (48.9%) are registered Democratic; 11,387 (20.9%) are registered Republican; 4,389 (8.1%) are registered with other political parties, and 12,082 (22.1%) declined to state a political party. In 2000, Mendocino County voters approved Measure G, which calls for the decriminalization of marijuana when used and cultivated for personal use. Measure G passed with

3556-694: The Eel River . Due to the resistance of the rock to erosion, the Eel River makes an abrupt "S" curve around Island Mountain in its otherwise north-northwesterly flow between the California Coast Ranges . It was noted as "Island Peak" by John Rockwell of the Coast Survey in 1878. The Island Mountain itself ( 40°1′25.89″N 123°29′50.95″W  /  40.0238583°N 123.4974861°W  / 40.0238583; -123.4974861 )

3683-624: The Federal Communications Commission (FCC) which regulates broadcast, cable, and satellite transmissions, includes nearby Colusa , Lake and Mendocino counties in their " San Francisco - Oakland - San Jose " media market , but excludes eastern Solano County. On the other hand, the United States Office of Management and Budget , which designates metropolitan statistical areas (MSAs) and combined statistical areas (CSA) for populated regions across

3810-546: The Golden Gate or the estuaries, likely due to fog. Sir Francis Drake became the first European to land in the area and claim it in June 1579, when he landed at Drakes Bay near Point Reyes. Even though he claimed the region for Queen Elizabeth I as Nova Albion or New Albion , the English made no immediate follow up to the claim. In 1595, Philip II of Spain tasked Sebastião Rodrigues Soromenho with mapping

3937-711: The Hayward Fault Zone , Concord-Green Valley Fault , Calaveras Fault , Clayton-Marsh Creek-Greenville Fault , Rodgers Creek Fault , and the San Gregorio Fault . Significant blind thrust faults (faults with near vertical motion and no surface ruptures) are associated with portions of the Santa Cruz Mountains and the northern reaches of the Diablo Range and Mount Diablo . These "hidden" faults, which are not as well known, pose

Island Mountain - Misplaced Pages Continue

4064-662: The Hayward fault , and the Diablo Range , which includes Mount Diablo and Mount Hamilton and runs along the Calaveras fault . In total, the Bay Area is traversed by seven major fault systems with hundreds of related faults, all of which are stressed by the relative motion between the Pacific Plate and the North American Plate or by compressive stresses between these plates. The fault systems include

4191-516: The Internet in the middle of the decade rapidly created a speculative bubble in the high-tech economy known as the dot-com bubble . This bubble began collapsing in the early 2000s and the industry continued contracting for the next few years, nearly wiping out the market. Companies like Amazon.com and Google managed to weather the crash however, and following the industry's return to normalcy, their market value increased significantly. Even as

4318-619: The North Pacific High through the Golden Gate, which creates the city's characteristic cool winds and fog . The microclimate phenomenon is most pronounced during this time, when fog penetration is at its maximum in areas near the Golden Gate strait, while the South Bay and areas further inland are sunny and dry. Along the San Francisco peninsula, gaps in the Santa Cruz Mountains , one south of San Bruno Mountain and another in Crystal Springs, allow oceanic weather into

4445-556: The Pacific Ocean on the west and the bay on the east and are characterized by their mountainous and woody terrain. Sonoma and Napa counties are known internationally for their grape vineyards and wineries , and Solano County to the east, centered around Vallejo , is the fastest growing region in the Bay Area. The " Peninsula " subregion includes the cities and towns on the San Francisco Peninsula, excluding

4572-615: The Portolá expedition , while trekking along the California coast, encountered them in 1769 when the Golden Gate blocked their continued journey north. Several missions were founded in the Bay Area during this period. In 1806, a Spanish expedition led by Gabriel Moraga began at the Presidio, traveled south of the bay, and then east to explore the San Joaquin Valley . In 1821, Mexico gained its independence from Spain and

4699-441: The Russian River valley near Hopland . Mendocino is a strongly Democratic county in presidential and congressional elections. The last Republican to win a majority in the county was Californian Ronald Reagan in 1984 . However, in the 2016 election, Mendocino County gave Hillary Clinton a reduced margin of victory of any Democrat since Al Gore (though support for third-party candidates more than doubled from 2012). In 2020

4826-604: The San Joaquin River Delta , causing a cooling effect in Stockton and Sacramento , so that these cities are also cooler than their Central Valley counterparts in the south. The Bay Area is home to a diverse array of wildlife and, along with the connected San Joaquin River Delta represents one of California's most important ecological habitats. California's Dungeness crab , Pacific halibut , and

4953-625: The U.S. Census Bureau , the county has a total area of 3,878 square miles (10,040 km ), of which 3,506 square miles (9,080 km ) is land and 372 square miles (960 km ) (9.6%) is water. The 2010 United States Census reported that Mendocino County had a population of 87,841. The racial makeup of Mendocino County was 67,218 (76.5%) White , 622 (0.7%) African American , 4,277 (4.9%) Native American , 1,450 (1.7%) Asian , 119 (0.1%) Pacific Islander , 10,185 (11.6%) from other races , and 3,970 (4.5%) from two or more races. Hispanic or Latino of any race were 19,505 persons (22.2%). As of

5080-684: The USS ; Portsmouth into the bay and seized San Francisco, which was then known as Yerba Buena , and raised the American flag for the first time over Portsmouth Square . In 1848, James W. Marshall 's discovery of gold in the American River sparked the California Gold Rush , and within half a year 4,000 men were panning for gold along the river and finding $ 50,000 per day. The promise of fabulous riches quickly led to

5207-615: The University of California, Berkeley Richard Walker claimed that "no other U.S. city-region is as definitionally challenged [as the Bay Area]." When the region began to rapidly develop during and immediately after World War II , local planners settled on a nine-county definition for the Bay Area, consisting of the counties that directly border the San Francisco , San Pablo , and Suisun estuaries : Alameda , Contra Costa , Marin , Napa , San Francisco , San Mateo , Santa Clara , Solano , and Sonoma counties. Today, this definition

Island Mountain - Misplaced Pages Continue

5334-501: The World Wildlife Fund's Pacific temperate rainforests ecoregion , the largest temperate rainforest ecoregion on Earth. The county is noted for its distinctive Pacific Ocean coastline, its location along California's " Lost Coast ", Redwood forests , wine production , microbrews , and liberal views about the use of cannabis and support for its legalization . In 2009, it was estimated that roughly one-third of

5461-510: The census of 2000, there were 86,265 people, 33,266 households, and 21,855 families residing in the county. The population density was 25 people per square mile (9.7 people/km ). There were 36,937 housing units at an average density of 10 units per square mile (3.9 units/km ). The racial makeup of the county was 80.8% White , 0.6% Black or African American , 4.8% Native American , 1.2% Asian , 0.2% Pacific Islander , 8.6% from other races , and 3.9% from two or more races. 16.5% of

5588-485: The gay rights movement . At the same time, parts of San Mateo and Santa Clara counties began to rapidly develop from an agrarian economy into a hotbed of the high-tech industry . Fred Terman , the director of a top-secret research project at Harvard University during World War II, joined the faculty at Stanford University in order to reshape the university's engineering department. His students, including David Packard and William Hewlett , would later help usher in

5715-476: The osprey . In 1927, zoologist Joseph Grinnell wrote that osprey were only rare visitors to the San Francisco Bay Area, although he noted records of one or two used nests in the broken tops of redwood trees along the Russian River . In 1989, the southern breeding range of the osprey in the Bay Area was Kent Lake , although osprey were noted to be extending their range further south in

5842-471: The poverty line , including 21.5% of those under age 18 and 7.7% of those age 65 or over. As of 2023, the District Attorney of Mendocino County is C. David Eyster, the elected Sheriff - Coroner is Matthew C. Kendall and the chief executive officer is Darcie Antle. Mendocino County is legislatively governed by a board of five supervisors, each with a separate district. The first district

5969-575: The west coast of the United States , including populations residing in tributaries to San Francisco Bay. California Coast Chinook salmon were historically native to the Guadalupe River in San Francisco Bay, and Chinook salmon runs persist today in the Guadalupe River, Coyote Creek , Napa River , and Walnut Creek . Industrial, mining, and other uses of mercury have resulted in a widespread distribution of that poisonous metal in

6096-587: The 1980s an effort to re-introduce the species to the area began with the Santa Cruz Predatory Bird Research Group and the San Francisco Zoo importing birds and eggs from Vancouver Island and northeastern California, and there are now nineteen nesting couples in eight of the Bay Area's nine counties. Other once absent species that have returned to the Bay Area include Swainson's hawk , white tailed kite , and

6223-559: The 2 mile wide strip of land belonged to themselves and not the other, with both counties attempting to levy and collect property tax land in said strip. In 1907, Trinity County sued Mendocino County in a Tehama County court to settle the dispute. The trial court in Tehama County ruled in favor of Trinity County, even though the land was situated south of the 40th parallel and state law stated that lands south of that parallel belonged to Mendocino County. The appellate court upheld

6350-701: The 20th century. Other tribes from the Sierra Nevada mountains were also relocated to the Round Valley Indian Reservation during the "California Trail Of Tears", where the Natives were forced to march in bad conditions to their new home in Round Valley. Many of these tribes thrown together were not on good terms with the other tribes they were forced to live with on the reservation, resulting in tensions still evident today. In

6477-550: The Americas . The earliest Spanish exploration of the Bay Area took place in 1769. The Mexican government controlled the area from 1821 until the 1848 Treaty of Guadalupe Hidalgo . Also in 1848, James W. Marshall discovered gold in nearby mountains , resulting in explosive immigration to the area and the precipitous decline of the Native population . The California Gold Rush brought rapid growth to San Francisco . California

SECTION 50

#1732780434320

6604-416: The Bay Area at the time of first European contact were descended from Siberian tribes who arrived at around 1,000 BCE by sailing over the Arctic Ocean and following the salmon migration. However the current academic consensus is compatible with the oral tradition of the Ohlone and Miwok peoples, which suggests they have been living in the Bay Area for several hundreds if not thousands of years. At

6731-439: The Bay Area became part of the Mexican province of Alta California , a period characterized by ranch life and visiting American trappers. Mexico's control of the territory would be short-lived, however, and in 1846 a party of settlers occupied Sonoma Plaza and proclaimed the independence of the new Republic of California . That same year, the Mexican–American War began, and American captain John Berrien Montgomery sailed

6858-449: The Bay Area has experienced numerous political, cultural, and artistic movements, developing unique local genres in music and art and establishing itself as a hotbed of progressive politics . Economically, the post-war Bay Area saw large growth in the financial and technology industries, creating an economy with a gross domestic product of over $ 700 billion. In 2018 it was home to the third-highest concentration of Fortune 500 companies in

6985-402: The Bay Area involves numerous local and regional jurisdictions, often with broad and overlapping responsibilities. The Coyote Hills Shell Mound, the earliest known archaeological evidence of human habitation of the Bay Area estuaries, dates to around 10,000 BCE, with evidence pointing to even earlier settlement in Point Reyes in Marin County . It has been conjectured that the people living in

7112-509: The Bay Area their home, making the region a popular destination for birdwatching . Many birds are listed as endangered species despite once being common in the region. Western burrowing owls were originally listed as a species of special concern by the California Department of Fish and Game in 1979. California's population declined 60% from the 1980s to the early 1990s, and continues to decline at roughly 8% per year. A 1992–93 survey reported little to no breeding burrowing owls in most of

7239-434: The Bay Area, all naturally spawned anadromous steelhead populations below natural and manmade impassable barriers in California streams from the Russian River to Aptos Creek , and the drainages of San Francisco, San Pablo, and Suisun Bays are listed as threatened under the Federal Endangered Species Act . The Central California Coast coho salmon population is the most endangered of the many troubled salmon populations on

7366-420: The Bay Area, left behind by the movement of the San Andreas Fault, whose movement sliced a subduction plate and allowed magma to briefly flow to the surface. The region has considerable vertical relief in its landscapes that are not in the alluvial plains leading to the bay or in the inland valleys. The topography, and geologic history, of the Bay Area can largely be attributed to the compressive forces between

7493-420: The Bay Area: the Karkin of the Carquinez Strait , the Chochenyo of the East Bay , the Ramaytush of the San Francisco Peninsula , and the Tamien of the South Bay. The Miwok had two major groups in the Bay Area: the Bay Miwok of Contra Costa and the Coast Miwok of Marin and Sonoma . In 1542, Juan Rodríguez Cabrillo explored the Pacific coast near the Bay Area though the expedition did not see

7620-458: The Bay. The wild turkey population was introduced in the 1960s by state game officials, and by 2015 have become a common sight in East Bay communities. The Bay Area is well known for the complexity of its landforms that are the result of the forces of plate tectonics acting over of millions of years, since the region is located in the middle of a meeting point between two plates. Nine out of eleven distinct assemblages have been identified in

7747-424: The California scorpionfish are all significant components of the bay's fisheries . The bay's salt marshes now represent most of California's remaining salt marsh and support a number of endangered species and provide key ecosystem services such as filtering pollutants and sediments from the rivers. Most famously, the bay is a key link in the Pacific Flyway and with millions of shorebirds annually visiting

SECTION 60

#1732780434320

7874-418: The California Constitution to define marriage as a union between one man and one woman. The following table includes the number of incidents reported and the rate per 1,000 persons for each type of offense. A coroner's jury ruled that the 2018 Hart family crash in Mendocino County was deliberate. Mendocino County is considered part of the San Francisco Bay Area television market, and primarily receives

8001-454: The California surveyor-general to survey the line and establish the boundaries between the two counties. The new line, as surveyed by Sam H. Rice and approved by the California Attorney General on December 18, 1891, was found to be 2 miles north of the common boundary surveyed by W.H. Fauntleroy, thereby resulting in Trinity County exercising jurisdiction two miles south of the 40th parallel north. Between 1891 and 1907, both counties claimed that

8128-554: The Central Valley and the Sierra Nevada. In 2014, a Bay Area-wide survey found osprey had extended their breeding range southward with nesting sites as far south as Hunters Point in San Francisco on the west side and Hayward on the east side, while further studies have found nesting sites as far south as the Los Gatos Creek watershed, indicating that the nesting range now includes the entire length of San Francisco Bay. Most nests were built on man-made structures close to areas of human disturbance, likely due to lack of mature trees near

8255-408: The East Bay receives oceanic weather that travels through the Golden Gate strait, and further diffuses that air through the Berkeley Hills , Niles Canyon and the Hayward Pass into the Livermore Valley and Altamont Pass . Here, the resulting breeze is so strong that it is home to one of the world's largest array of wind turbines . Further north, the Carquinez Strait funnels the ocean weather into

8382-602: The English singer-songwriter John Howard on his 2007 E.P., and also by Bette Midler on her 2014 album It's The Girls . A song written by Matt Serletic and Bernie Taupin , " Mendocino County Line " which was released in 2002, is about a love that could not last and cites the 'Mendocino County Line' in the chorus. Many films and movies have been filmed in and around Mendocino County , including Dying Young , The Russians Are Coming ; Overboard ; The Dunwich Horror ; The Karate Kid Part III ; Dead & Buried ; Forever Young ; Same Time Next Year ; Racing with

8509-641: The Moon ; Pontiac Moon ; and The Majestic . San Francisco Bay Area The San Francisco Bay Area , commonly known as the Bay Area , is a region of California surrounding and including San Francisco Bay . The Association of Bay Area Governments defines the Bay Area as including the nine counties that border the estuaries of San Francisco Bay, San Pablo Bay , and Suisun Bay : Alameda , Contra Costa , Marin , Napa , San Mateo , Santa Clara , Solano , Sonoma , and San Francisco . Other definitions may be either smaller or larger, and may include neighboring counties which are not officially part of

8636-434: The Pacific Plate and the North American plate. The three major ridge structures in the Bay Area, part of the Pacific Coast Range , are all roughly parallel to the major faults . The Santa Cruz Mountains along the San Francisco Peninsula and the Marin Hills in Marin County follow the San Andreas fault , The Berkeley Hills , San Leandro Hills and their southern ridgeline extension through Mission Peak roughly follow

8763-413: The San Francisco Bay Area are not officially delineated, and the unique development patterns influenced by the region's topography , as well as unusual commute patterns caused by the presence of three central cities and employment centers located in various suburban locales, has led to considerable disagreement between local and federal definitions of the area. Because of this, professor of geography at

8890-415: The San Francisco Bay Area, such as the Central Coast counties of Santa Cruz , San Benito , and Monterey , or the Central Valley counties of San Joaquin , Merced , and Stanislaus . The Bay Area is known for its natural beauty, prominent universities, technology companies, and affluence. The Bay Area contains many cities, towns, airports, and associated regional, state, and national parks, connected by

9017-418: The Ukiah, California Micropolitan Statistical Area (μSA) for the purposes of the U.S. Census Bureau . It is located approximately equidistant from the San Francisco Bay Area and California/ Oregon border, separated from the Sacramento Valley to the east by the California Coast Ranges . While smaller areas of redwood forest are found further south, it is the southernmost California county to be included in

9144-540: The United States. The Bay Area is home to approximately 7.52 million people. The larger federal classification, the combined statistical area of the region which includes 13 counties, is the second-largest in California—after the Greater Los Angeles area—and the fifth-largest in the United States, with over 9 million people. The Bay Area's population is ethnically diverse: roughly three-fifths of

9271-488: The Whale , a humpback whale who entered San Francisco Bay twice on errant migrations in the late 1980s and early 1990s. Bottlenose dolphins and harbor porpoises have recently returned to the bay, having been absent for many decades. Historically, this was the northern extent of their warm-water species range. In addition to the many species of marine birds that can be seen in the Bay Area, many other species of birds make

9398-472: The area's largest city and the 13th-most populous in the United States . Despite its urban character, San Francisco Bay is one of California's most ecologically sensitive habitats, providing important ecosystem services such as filtering the pollutants and sediments from rivers and supporting a number of endangered species . In addition, the Bay Area is known for its stands of coast redwoods , many of which are protected in state and county parks. The region

9525-760: The area, like the Yuki , the Pomo , the Cahto , and the Wintun . The systematic occupation of their lands, the reduction of many of their members into slavery and the raids against their settlements led to the Mendocino War in 1859, where hundreds of Indians were killed. Establishment of the Round Valley Indian Reservation on March 30, 1870, did not prevent the segregation that continued well into

9652-590: The bay has been significantly altered heavily re-engineered to accommodate the needs of water delivery, shipping, agriculture, and urban development, with side effects including the loss of wetlands and the introduction of contaminants and invasive species . Approximately 85% of those marshes have been lost or destroyed, but about 50 marshes and marsh fragments remain. Huge tracts of the marshes were originally destroyed by farmers for agricultural purposes, then repurposed to serve as salt evaporation ponds to produce salt for food and other purposes. Today, regulations limit

9779-436: The bay into north and south regions. In 1989, the federal Environmental Protection Agency defined the South Bay as the northern part of Santa Clara County and the southeastern part of San Mateo County. The Bay Area is located in the warm-summer Mediterranean climate zone ( Köppen Csb ) that is a characteristic of California's coast, featuring mild to cool winters with occasional rainfall, and warm to hot, dry summers. It

9906-502: The bay shallows as a refuge, is the most important component of the flyway south of Alaska . Many endangered species of birds are also found here: the California least tern , the California clapper rail , the snowy egret , and the black crowned night heron . There is also a significant diversity of salmonids present in the bay. Steelhead populations in California have dramatically declined due to human and natural causes; in

10033-488: The bay, with uptake in the bay's phytoplankton and contamination of its sportfish . Aquatic mammals are also present in the bay. Before 1825, Spanish, French, English, Russians and Americans were drawn to the Bay Area to harvest prodigious quantities of beaver , river otter , marten, fisher, mink, fox, weasel, harbor and fur seals and sea otter . This early fur trade, known as the California Fur Rush ,

10160-547: The capital city moved between three cities in the Bay Area: San Jose (1849–1851), Vallejo (1851–1852), and Benicia (1852–1853) before permanently settling in Sacramento in 1854. As the Gold Rush subsided, wealth generated from the endeavor led to the establishment of Wells Fargo Bank and the Bank of California , and immigrant laborers attracted by the promise of wealth transformed the demographic makeup of

10287-551: The challenge in court, as the wording of Measure B relies heavily on S.B. 420's state limitations which were recently ruled unconstitutional by the California supreme court. On July 3, the Sheriff and District Attorneys offices announced that they would not be enforcing the new regulations for the time being, citing pending legal challenges and conflicts with existing state law. In April 2009, Sheriff Tom Allman issued his department's medical marijuana enforcement policy, which includes

10414-568: The city of San Francisco, natural and artificial topographical features direct the movement of wind and fog, resulting in startlingly varied climates between city blocks. Along the Golden Gate Strait , oceanic wind and fog from the Pacific Ocean are able to penetrate the mountain barriers inland into the Bay Area. During the summer, rising hot air in California's interior valleys creates a low pressure area that draws winds from

10541-415: The counties named herein", thereby making the law in the political code which defined the boundary as the 40th parallel north only a suggestion and not a fact. The legislature subsequently affirmed this decision, with the modern statute defining the borders of the two counties referencing the survey of Fauntleroy as being the boundary between the two counties instead of the 40th parallel north. According to

10668-494: The country, has five MSAs which include, wholly or partially, areas within the nine-county definition, and one CSA which includes eight Bay Area counties (excluding Sonoma ), but including neighboring San Benito , Santa Cruz , San Joaquin , Merced , and Stanislaus counties. The Association of Bay Area Health Officers (ABAHO), an organization that has fought local outbreaks of HIV/AIDS in 1980s and with COVID-19 pandemic and Delta cron hybrid variant (2020–22), consists of

10795-443: The county was won by Joe Biden with an increased margin of victory from the previous election. Federally, Mendocino County is in California's 2nd congressional district , represented by Democrat Jared Huffman . In the state legislature Mendocino is in the 2nd Senate District , represented by Democrat Mike McGuire , and the 2nd Assembly District , represented by Democrat Jim Wood . As of February 2021,

10922-490: The destruction of tidal marshes, and large portions are currently being rehabilitated to their natural state. Over time, droughts and wildfires have increased in frequency and become less seasonal and more year-round, further straining the region's water security . According to the 2010 United States Census , the population of the nine-county Bay Area was 7.15 million, with 49.6% male and 50.4% female. Of these, approximately 2.3 million (32%) are foreign born. In 2010

11049-411: The economy was based on the cultivation of marijuana. The notable historic and recreational attraction of the " Skunk Train " previously connected Fort Bragg with Willits in Mendocino County via a steam-locomotive, before a tunnel collapse in 2013. Mendocino is one of three Northern California counties to make up the " Emerald Triangle ", along with Humboldt and Trinity counties. Mendocino County

11176-727: The establishment of two Mexican land grants in southern Mendocino County: Rancho Sanel in Hopland, in 1844 and Rancho Yokaya that forms the majority of the Ukiah Valley, in 1845. In the 19th century, despite the establishment of the Mendocino Indian Reservation and Nome Cult Farm in 1856, the county witnessed many of the most serious atrocities in the extermination of the Californian Native American tribes who originally lived in

11303-486: The first half of the 1850's the California State Legislature established that the boundaries of Mendocino and Trinity Counties was the 40th parallel north . Both county board of supervisor's hired the surveyor W.H. Fauntleroy to survey the parallel, which he completed on October 30, 1872. The accuracy of the boundary was doubtful, and by 1891 the Mendocino County Board of Supervisors requested

11430-569: The following table is based on the 2010 census of Mendocino County. † county seat "Mendocino" by The Sir Douglas Quintet was released in December 1968 and reached No. 27 in the U.S. Billboard Hot 100 by early 1969, spending 15 weeks in the chart. Kate McGarrigle 's song "(Talk to Me of) Mendocino," is one of the songs on the McGarrigles' 1975 debut album; it has been covered by Linda Ronstadt on her 1982 album Get Closer , and by

11557-553: The growth of the technology sector transformed the region's economy, progressive politics continued to guide the region's political environment. By the turn of the millennium, non-Hispanic whites , the largest ethnic group in the United States, were only half of the population in the Bay Area as immigration among minority groups accelerated. During this time, the Bay Area was the center of the LGBT rights movement : in 2004, San Francisco began issuing marriage licenses to same-sex couples ,

11684-581: The hit American pop song San Francisco (Be Sure to Wear Flowers in Your Hair) further enticing like-minded individuals to join the movement in the Bay Area and leading to the Summer of Love . In the proceeding decades, the Bay Area would cement itself as a hotbed of New Left activism, student activism , opposition to the Vietnam War and other anti-war movements , the black power movement , and

11811-523: The interior, causing a cooling effect for cities along the Peninsula and even as far south as San Jose. This weather pattern is also the source for delays at San Francisco International Airport . In Marin county north of the Golden Gate strait, two gaps north of Muir Woods bring cold air across the Marin Headlands , with the cooling effect reaching as far north as Santa Rosa . Further inland,

11938-408: The larger subregions, the East Bay includes a variety of enclaves, including the suburban Tri-Valley area and the highly urban western part of the subregion that runs alongside the bay, including Oakland. The " North Bay " includes Marin , Sonoma , Napa , and Solano counties, and is the geographically largest and least populated subregion. The western counties of Marin and Sonoma are encased by

12065-429: The latter two into the Pacific Ocean. In the South Bay, the Guadalupe River drains into San Francisco Bay near Alviso . There are also several lakes present in the Bay Area, including man-made lakes like Lake Berryessa and natural albeit heavily modified lakes like Lake Merritt . Prior to the introduction of European agricultural methods, the shores of San Francisco Bay consisted mostly of tidal marshes. Today,

12192-585: The major Bay Area TV stations . The county is also served by local and regional newspapers as well as a community radio stations. Community radio stations include KZYX , operating out of Philo, and KLLG , operating out of the Little Lake Grange in Willits. The Humboldt County-based KMUD is also receivable in large parts of the county. Local independent newspapers include the online news service The Mendocino Voice , and The Laytonville Observer,

12319-506: The name "Island" until August 16, 1915, when it was renamed "Island Mountain." Mendocino County, California Mendocino County ( / ˌ m ɛ n d ə ˈ s iː n oʊ / ; Mendocino , Spanish for "of Mendoza ") is a county located on the North Coast of the U.S. state of California . As of the 2020 census , the population was 91,601. The county seat is Ukiah . Mendocino County consists wholly of

12446-568: The northwestern quadrant of the county, including the coast from Caspar northwards through Fort Bragg ; its supervisor is Dan Gjerde, who previously served on the Fort Bragg City Council. The supervisor for the fifth district is Ted Williams; his district covers the southern portion of the county, including the coast from Mendocino to Gualala , the Anderson Valley , the western outskirts of Ukiah , and portions of

12573-593: The past several years, in keeping with the nationwide tactics of DFM. The Sonoma County-based Press Democrat also covers the area. School districts include: Unified: Secondary: Elementary: The Mendocino Transit Authority provides local and intercity bus service within Mendocino County. Limited service also connects with transit in Sonoma County . Greyhound Bus Lines currently serves Ukiah . Amtrak Thruway operates connecting bus service to Ukiah, Willits and Laytonville. The historic Skunk Train

12700-407: The population were Hispanic or Latino of any race. 12.2% were of German , 10.8% English , 8.6% Irish , 6.1% Italian and 5.6% American ancestry according to Census 2000 . 84.4% spoke English and 13.2% Spanish as their first language. There were 33,266 households, out of which 31.4% had children under the age of 18 living with them, 48.9% were married couples living together, 11.7% had

12827-521: The provisions of Measure B and also cites the California Supreme Court Ruling narrowly defining "caregiver" in the state's medical marijuana law. In 2004, Measure H was passed in Mendocino County with a 56% majority, making it the first county in the United States to ban the production and cultivation of genetically modified organisms . On November 4, 2008, Mendocino County voted 63.1% against Proposition 8 which amended

12954-688: The public health officers of 9 Bay Area counties, in addition to the Central Coast counties of Santa Cruz , San Benito , and Monterey and the city of Berkeley . Among locals, the nine-county Bay Area is divided into five sub-regions: the East Bay , North Bay , Peninsula , city of San Francisco , and South Bay . The " East Bay " is the densest region of the Bay Area outside of San Francisco and includes cities and towns in Alameda and Contra Costa counties centered around Oakland . As one of

13081-497: The racial makeup of the nine-county Bay Area was 52.5% White (42.4% were non-Hispanic and 10.1% were Hispanic ), 23.3% Asian , 6.7% non-Hispanic Black or African American , 0.7% Native American or Alaska Native , 0.6% Pacific Islander , 5.4% from two or more races and 10.8% from other races. Hispanic or Latino residents of any race formed 23.5% of the population. The Bay Area cities of Vallejo , Suisun City , Oakland , San Leandro , Fairfield , and Richmond are among

13208-538: The railroad. The redwood framing of tunnel 27 burned on September 6, 1978, and a significant length of the tunnel collapsed. Tunnel rebuilding costing 3.8 million dollars was completed on December 7, 1979. Stop number 293, also named "Island Mountain" on the Northwestern Pacific Railroad was located along the tracks near the river where a railroad bridge crosses the Eel prior to the tracks entering

13335-525: The region and even riots in Oakland. His name was symbolically tied to the Occupy Oakland protests two years later that sought to fight against social and economic inequality. By August 2023, San Francisco was in such severe decline that Mayor Matt Mahan of San Jose joked that one day the region might be renamed the "San Jose Bay Area", after its largest and most prosperous city. The borders of

13462-472: The region's high-tech revolution. In 1955, Shockley Semiconductor Laboratory opened for business in Mountain View near Stanford, and although the business venture was a financial failure, it was the first semiconductor company in the Bay Area, and the talent that it attracted to the region eventually led to a high-tech cluster of companies later known as Silicon Valley . In 1989, in the middle of

13589-412: The region's residents are Hispanic/Latino , Asian , African/Black , Indian , or Pacific Islander , all of whom have a significant presence throughout the region. Most of the remaining two-fifths of the population is non-Hispanic White American . The most populous cities of the Bay Area are San Francisco, Oakland , and San Jose , the latter of which had a population of 969,655 in 2023, making San Jose

13716-505: The region. In the early morning of April 18, 1906, a large earthquake with an epicenter near the city of San Francisco hit the region. Immediate casualty estimates by the U.S. Army 's relief operations were 498 deaths in San Francisco, 64 deaths in Santa Rosa , and 102 in or near San Jose, for a total of about 700. More recent studies estimate the total death count to be over 3,000, with over 28,000 buildings destroyed. Rebuilding efforts began immediately. Amadeo Peter Giannini , owner of

13843-598: The region. Between 1950 and 1960, San Francisco welcomed over 100,000 new residents, inland suburbs in the East Bay saw their populations double, Daly City 's population quadrupled, and Santa Clara 's population quintupled. By the early 1960s, the Bay Area and the rest of Northern California became the center of the counterculture movement . Telegraph Avenue in Berkeley and the Haight-Ashbury neighborhood in San Francisco were seen as centers of activity, with

13970-525: The region. Construction of the First transcontinental railroad from the Oakland Long Wharf attracted so many laborers from China that by 1870, eight percent of San Francisco's population was of Asian origin. The completion of the railroad connected the Bay Area with the rest of the United States, established a truly national marketplace for the trade of goods, and accelerated the urbanization of

14097-404: The ruling of the trial court since Section 10 of the special act of March 30, 1872 (Stats. 1871-2, p. 766), which concerned this boundary and was the act under which Fauntleroy acted under, authorized the survey of the theretofore unknown location of the 40th parallel north, stated that "the lines run out, marked and defined as required by this act are hereby declared to be the true boundary lines of

14224-441: The south end of Island Mountain tunnel at milepost 194.8. A volcanogenic massive sulfide ore deposit within Island Mountain was mined after rail service became available. Between 1915 and 1930, 4,100 tons of copper , 140,000 ounces of silver , and 8,600 ounces of gold were mined . Minerals identified within the ore body include chalcanthite , chalcopyrite , copiapite , goslarite , pyrite , and pyrrhotite . Volcanic rock

14351-430: The south. Emergency services for the largely unincorporated county are coordinated through Howard Forest Station , a local Cal Fire station just south of Willits. Mendocino County has nine Indian reservations lying within its borders, the fourth most of any county in the United States (after San Diego County, California ; Sandoval County, New Mexico ; and Riverside County, California ). The population ranking of

14478-648: The sub port of Los Angeles. After World War II, the United Nations was chartered in San Francisco, and in September 1951, the Treaty of San Francisco to re-establish peaceful relations between Japan and the Allied Powers was signed in San Francisco, entering into force a year later. In the years immediately following the war, the Bay Area saw a huge wave of immigration as populations increased across

14605-664: The time of colonization, the Ohlone peoples in the Bay Area primarily lived on the San Francisco Peninsula, in the South Bay and in the East Bay, and the Miwok primarily lived in the North Bay, northern East Bay, and Central Valley. Ohlone villages were spread across the Peninsula, East Bay, South Bay, as well as further south into the Monterey Bay area. There were eight major divisions of Ohlone people, four of which were based in

14732-537: The tip of the San Francisco Peninsula, the city of San Francisco is not considered part of the "Peninsula" subregion, but as a separate entity. The term "South Bay" has different meanings to different groups: Writing in 1959 for the Army Corps of Engineers , the United States Department of Commerce defined the South Bay as comprising five counties, corresponding to their two-way division of

14859-544: The titular city of San Francisco. Its eastern half, which runs alongside the Bay, is highly populated, while its less populated western coast traces the coastline of the Pacific Ocean and is known for its open space and hiking trails. Roughly coinciding with the borders of San Mateo County , it also includes the northwestern Santa Clara County cities of Palo Alto , Mountain View , and Los Altos . Although geographically located on

14986-535: The west coast of the Americas. Soromenho set sail on Manila Galleon San Agustin on July 5, 1595 and in early November they reached land between Point St. George and Trinidad Head , north of the Bay Area, in the Lost Coast . The expedition followed the coast southward and on November 7 the San Agustin anchored in Drakes Bay, and claimed the region as Puerto y Bahía de San Francisco . In late November,

15113-419: The western counties in the Bay Area, leaving only Alameda , Contra Costa , and Solano counties as remnants of a once large breeding range. Bald eagles were once common in the Bay Area, but habitat destruction and thinning of eggs from DDT poisoning reduced the California state population to 35 nesting pairs. Bald eagles disappeared from the Bay Area in 1915, and only began returning in recent years. In

15240-459: The winter season is cool and mild, the summer season is characterized by warm sunny days, while in San Francisco and areas closer to the Golden Gate strait, the summer season is periodically affected by fog. Due to the Bay Area's diverse topographic relief (itself the result of the clashing tectonic plates ), the region is home to numerous microclimates that lead to pronounced differences in climate and temperature over short distances. Within

15367-623: Was admitted as the 31st state in 1850. A major earthquake and fire leveled much of San Francisco in 1906. During World War II , the Bay Area played a major role in America's war effort in the Asiatic-Pacific Theater , with the San Francisco Port of Embarkation , of which Fort Mason was one of 14 installations and location of the headquarters, acting as a primary embarkation point for American forces. Since then,

15494-411: Was 39 years. For every 100 females there were 98.9 males. For every 100 females age 18 and over, there were 97.1 males. The median income for a household in the county was $ 35,996, and the median income for a family was $ 42,168. Males had a median income of $ 33,128 versus $ 23,774 for females. The per capita income for the county was $ 19,443. About 10.9% of families and 15.9% of the population were below

15621-541: Was first reported in Redwood Creek at Muir Beach in 1996, has since been spotted in the North Bay's Corte Madera Creek , the South Bay's Coyote Creek , as well as in 2010 in San Francisco Bay itself at the Richmond Marina . Other mammals include the internationally famous sea lions who began inhabiting San Francisco's Pier 39 after the 1989 Loma Prieta earthquake and the locally famous Humphrey

15748-616: Was more than any other single factor, responsible for opening up the West and the San Francisco Bay Area, in particular, to world trade. By 1817 sea otter in the area were practically eliminated. Since then, the California golden beaver re-established a presence in Alhambra Creek , followed by the Napa River and Sonoma Creek in the north, and the Guadalupe River and Coyote Creek in the south. The North American river otter which

15875-405: Was one of the original counties of California, created in 1850 at the time of statehood. Due to an initially minor settler American population, it did not have a separate government until 1859 and was under the administration of Sonoma County prior to that. Some of the county's land was given to Sonoma County between 1850 and 1860. The county derives its name from Cape Mendocino (most of which

16002-427: Was quarried from Island Mountain by Northwestern Pacific Railroad for heavy riprap used as far away as Humboldt Bay . Island Mountain is the name of a populated place located in Trinity County located at 40°1′33.6″N 123°29′24″W  /  40.026000°N 123.49000°W  / 40.026000; -123.49000 , 538 feet (164 m) above sea level. The first post office here was established in 1905 under

16129-558: Was the final obstacle to completion of the Northwestern Pacific Railroad between San Francisco and Eureka. Railroad construction proceeded northerly down the west side of the Eel River canyon and bridged the river at the "S" curve to enter 4,313-foot (0.82 mi; 1.31 km) tunnel number 27 through the mountain. There was a golden spike ceremony downstream of the mountain at Cain Rock in 1914 to complete

#319680