Santa Clara Valley#San Francisco South Bay
{{Use mdy dates|date=June 2023}}
{{Short description|Valley in Northern California, United States}}
{{About||the wine region in the same area|Santa Clara Valley AVA|the valley in Southern California|Santa Clara River Valley}}
{{redirect|Valley of the Heart's Delight|the 2006 film|Valley of the Heart's Delight (film)}}
{{Infobox valley
| name = Santa Clara Valley
| other_name = Valle de Santa Clara (Spanish)
| photo = {{Photomontage
| photo1a = SJ_skyline_at_night_horizontal.jpg
| photo3a = Almaden Lake Park 1.2 (cropped).jpg
| photo3b = Alviso,_San_Jose_1_(cropped).jpeg
| photo2a = Stanford University Main Quad May 2011 001 (cropped).jpg
| photo2b = Friday_May_10,_130_365_(8761584621).jpg
| photo4a = AlumRockViewSiliconValley w.jpg
| spacing = 2
| position = center
| color_border = white
| color = white
| size = 270
| foot_montage = Clockwise from the top left:
Downtown San Jose skyline; Hillsides in Morgan Hill; Alviso, San Jose; View of Santa Clara Valley; Almaden Reservoir in South San Jose; Stanford University in Stanford.
}}
| map_image = Relief map of Santa Clara Valley.png
| map_caption = Location in California
| coordinates = {{coord|37|22|01|N|121|59|02|W|source:kolossus-nowiki|display=inline,title}}
| location = California, United States
| length = {{convert|90|mi|km|0}}
| direction = northwest–southeast
| towns =
| boundaries = San Francisco Bay (north), Santa Cruz Mountains (southwest), Diablo Range (east)
| traversed =
| watercourses =
}}
The Santa Clara Valley (Spanish: Valle de Santa Clara)[https://www.univision.com/local/san-francisco-kdtv/serpientes-del-valle-de-santa-clara-que-hacer-si-te-encuentras-con-una Univision Área de la Bahía - Las serpientes del Valle de Santa Clara: Qué hacer si te encuentras con una][https://www.valleywater.org/sites/default/files/Letter%20from%20Chair%20Varela%20-%20Sp.pdf ValleyWater - El Distrito de Aguas del Valle de Santa Clara está organizando reuniones comunitarias el 6, 12 y 17 de abril sobre las inundaciones y los esfuerzos de prevención de riesgos de inundación] is a geologic trough in Northern California that extends {{convert|90|mi|km}} south–southeast from San Francisco to Hollister. The longitudinal valley is bordered on the west by the Santa Cruz Mountains and on the east by the Diablo Range; the two coastal ranges meet south of Hollister. The San Francisco Bay borders the valley to the north, and fills much of the northern third of the valley.{{cite book|title=Land Subsidence in the Santa Clara Valley, California, as of 1982 |last1=Poland |first1=Joseph Fairfield |last2=Ireland |first2=R. L. |date=1988 |publisher=Department of the Interior, U.S. Geological Survey |page=F1 |volume=497}} The valley floor is an alluvial plain that formed in the graben (tectonic depression) between the San Andreas Fault to the west and the Hayward and Calaveras faults to the east.[https://water.ca.gov/-/media/DWR-Website/Web-Pages/Programs/Groundwater-Management/Bulletin-118/Files/2003-Basin-Descriptions/2_009_04_East-BayPlainSubbasin.pdf Santa Clara Valley Groundwater Basin, East Bay Plain Subbasin] {{webarchive|url=https://web.archive.org/web/20201225204616/https://water.ca.gov/-/media/DWR-Website/Web-Pages/Programs/Groundwater-Management/Bulletin-118/Files/2003-Basin-Descriptions/2_009_04_East-BayPlainSubbasin.pdf}}
Within the valley and surrounding the bay on three sides are the urban communities of San Mateo County, Santa Clara County, and Alameda County, while the narrow southern reaches of the valley extend into rural San Benito County to Hollister. In practical terms, the central portion of the Santa Clara Valley is often considered by itself, contained entirely within Santa Clara County.
The valley, named after the Spanish Mission Santa Clara, was for a time known as the Valley of Heart's Delight for its high concentration of orchards, flowering trees, and plants.{{cite book |last1=Shueh |first1=Sam |title=Silicon Valley |date=2009 |publisher=Arcadia Publishing |location=Charleston, SC |isbn=9780738570938 |page=8 |url=https://books.google.com/books?id=kQj9sq1ktn0C&pg=PA8 |access-date=28 July 2020}}{{cite book |last1=Todd |first1=Anne Marie |title=Valley of Heart's Delight: Environment and Sense of Place in the Santa Clara Valley |date=2023 |publisher=University of California Press |location=Oakland |isbn=9780520389571 |page=2 |url=https://books.google.com/books?id=6O19EAAAQBAJ&pg=PA2}} Until the 1960s it was the largest fruit-producing and packing region in the world, with 39 canneries.[https://archive.org/details/valley_of_hearts_delight Valley of Heart's Delight : Free Download & Streaming : Internet Archive]. Archive.org (2001-03-10). Retrieved on 2013-07-21.[https://archive.org/details/GoldenHa1950 Golden Harvest...Fifty Years of Calpak Progress : California Packing Corporation, Industrial and Public Relations Department : Free Download & Streaming : Internet Archive]. Archive.org. Retrieved on 2013-07-21. The growing high-tech industry in the 1960s transformed the area from farmland to densely populated cities, and it became referred to as the Silicon Valley.
Overview
Once primarily agricultural because of its highly fertile soil, Santa Clara Valley is now largely urbanized, although its far southern reaches south of Gilroy remain agrarian. Few traces of its agricultural past can still be found, but the Santa Clara Valley American Viticultural Area remains a large wine-making region. It was one of the first commercial wine-producing regions in California (and possibly the United States), utilizing high-quality French varietal vines imported from France.[http://ohp.parks.ca.gov/default.asp?page_id=21522 Santa Clara]. Ohp.parks.ca.gov. Retrieved on 2013-07-21.[https://web.archive.org/web/20081205014547/http://www.awna.org/history/Almaden_Winery_History_NCD/almaden_winery_history_from_ncd.htm Almaden Winery History from NCD]. Awna.org (1997-01-23). Retrieved on 2013-07-21.
The northern end of the Santa Clara Valley is at San Francisco, and the southern end is south of Hollister. The valley is bounded by the Santa Cruz Mountains on the southwest, which separate the valley from the Pacific Ocean, and by the Diablo Range on the northeast. The valley is approximately {{convert|93|mi|km|-1}} long by {{convert|15|mi|km|-1}} wide. Its largest city is San Jose. Santa Clara Valley has a Mediterranean semi-arid climate.
Joseph S. Diller, a geologist, observed in 1915 that a "notable peculiarity" of the Santa Clara Valley is that "it is divided transversely by a scarcely noticeable soil-covered divide."{{cite book |last1=Diller |first1=J.S. |title=Guidebook of the Western United States — Part D: The Shasta Route and Coast Line |date=1915 |publisher=Government Printing Office |location=Washington, D.C. |pages=124–125 |url=https://books.google.com/books?id=BZIuAAAAIAAJ&pg=RA6-PA124}} The northern portion is drained northward by various rivers and creeks into San Francisco Bay. The southern portion of the valley is drained southward by Llagas Creek into the Pajaro River, which in turn flows westward to Monterey Bay. As one travels across the valley floor, "the alluvial plain is continuous across the divide." The summit of the transverse divide is about two miles from the former town of Madrone at an elevation of {{convert|345|ft|m|abbr=off|sp=us}}, but the alluvial plain is so continuous that most travelers are unaware they are crossing between two drainage basins.
History
The earliest known inhabitants on the Santa Clara Valley are the Ohlone people, who had eight distinct languages and tribes in the coastal region.{{Cite news|url=http://www.sanjosehistory.org/pre-history/|archive-url=https://web.archive.org/web/20131106141953/http://www.sanjosehistory.org/pre-history/|url-status=usurped|archive-date=November 6, 2013|title=Pre-History|date=2013-11-04|work=San Jose History|access-date=2018-04-10|language=en-US}}{{Cite web|url=https://www.nps.gov/nr/travel/santaclara/history.htm|title=Early History Essay – Santa Clara County, California|website=National Register of Historic Places Travel Itinerary|access-date=2018-04-10}} Mission Santa Clara de Asís, which had control over a vast tract of land stretching from Palo Alto to Gilroy, was founded by Franciscans in 1777. San Jose was California's first town and was also founded in 1777 by Spain as an agricultural pueblo. There were 66 original settlers. In Spanish and Mexican times the land was devoted to cattle, as was most of California. Following the Mexican–American War San Jose was briefly the capital of California. The influx of Americans resulted in relocation of many of the native Mexican and Indian people of San Jose to the mission at Santa Clara, which had been under control of Jesuits from 1850; they founded Santa Clara University there in 1851. In 1860, as an American town, the population of San Jose was 4,579, with cattle ranching still the main agricultural activity. For a time wheat became the main crop, but in the 1870s fruit gradually became the main crop and processing of fruit by drying or canning the predominant industry. The railroad reached San Jose in 1860.{{cite book|author1=Glenda Matthews|title=Silicon Valley, Women, and the California Dream: Gender, Class, and Opportunity in the Twentieth Century|date=November 20, 2002|publisher=Stanford University Press|location=Stanford, California|isbn=978-0804747967|page=[https://archive.org/details/siliconvalleywom00matt/page/14 14]|edition=1|url=https://archive.org/details/siliconvalleywom00matt/page/14|access-date=January 16, 2015|format=trade paperback}}
=The Valley of Heart's Delight=
File:Prune Orchard near Santa Clara, California (3655751146).jpg
The valley with its scenic beauty, mild climate, and thousands of acres of blooming fruit trees was known as "The Valley of Heart's Delight". Various fruit cooperatives were formed in the area to deal with economic issues, including the California Fruit Union (founded in 1883) and the Santa Clara County Fruit Exchange (founded in 1892).{{Cite web|url=https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=PRP18920716.2.20.1&e=-------en--20--1--txt-txIN--------1|title=The Santa Clara Fruit Exchange|date=1892-07-16|website=California Digital Newspaper Collection|publisher=Pacific Rural Press, Volume 44, Number 3|access-date=2018-04-10}}{{Cite book|url=https://books.google.com/books?id=pDRPAAAAIAAJ|title=Proceedings, State Fruit Growers Convention|publisher=State Board of Agriculture|year=1900|location=San Jose, California|pages=33|via=Google Books}} Prunes were a major crop, with the valley was producing the majority of prunes in California by 1900 and shipped internationally.{{Cite book|title=Clyde Arbuckle's History of San Jose|last=Arbuckle|first=Clyde|publisher=Smith & McKay Printing Company|year=1985|pages=160}} Water was supplied from an artesian aquifer and when the water table dropped, wells were pumped. Many orchards were small with housing and fruit growing in a dispersed pattern. By the 1920s and 1930s, the agricultural and horticultural industries were doing well in the valley and included 18 canneries, 13 dried-fruit packing houses, and 12 fresh-fruit and vegetable shipping firms, and they were shipping internationally.{{Cite news|url=https://www.sjpl.org/blog/looking-back-canning-valley-hearts-delight|title=Looking Back: Canning in the Valley of Heart's Delight|date=2013-05-23|work=San Jose Public Library|access-date=2018-04-10|language=en}} Del Monte and Sunsweet are two brands which originated in the Santa Clara Valley.{{Citation needed|date=March 2023}}
The need for workers greatly exceeded the local population and in the nineteenth century, Chinese and Japanese immigrants met that need. Toward the end of the nineteenth century many Italians and other immigrants from Southern and Eastern Europe came to the valley and worked in the orchards and canneries. During the 20th century there were Filipino immigrants and increasing numbers of immigrants from Mexico who during World War II became the dominant agricultural workforce. The town of San Jose was dominated by its business community, which was in part composed of Irish Catholics, who had a self-contained social life which did not include immigrant labor.{{cite book|author1=Mary Bowden Carroll|title=Ten Years in Paradise: Leaves from a Society Reporter's Note-Book|date=1988|publisher=San Jose Historical Museum Association|location=San Jose, California|pages=entire book|edition=Reprint|quote=Originally published in 1903}} There was marked prejudice against Asians, particularly Chinese, who gradually left the valley.{{cite book|author1=Glenda Matthews|title=Silicon Valley, Women, and the California Dream: Gender, Class, and Opportunity in the Twentieth Century|date=November 20, 2002|publisher=Stanford University Press|location=Stanford, California|isbn=978-0804747967|pages=[https://archive.org/details/siliconvalleywom00matt/page/14 14–32]|edition=1|url=https://archive.org/details/siliconvalleywom00matt/page/14|access-date=January 16, 2015|format=trade paperback}}
=The Great Depression=
Deflation and overproduction severely hurt the orchards and packers of the Santa Clara Valley during the Great Depression. Bankrupt farmers from the Dust Bowl, the Okies, made the trek to California. Desperate to feed their families, they joined a workforce that was itself impacted by unemployment. The growers, with record low prices and surplus supply, could pay little. Labor organizers and goon squads battled in the labor camps.Kate Bronfenbrenner, [http://digitalcommons.ilr.cornell.edu/cgi/viewcontent.cgi?article=1561&context=articles "California Farmworkers' Strikes of 1933]", pages 79-83 in Labor conflict in the United States: An encyclopedia, edited by R. L. Filippelli, Garland Publishing, Inc. (1990) {{ISBN|082407968X}} Woody Guthrie's songs were on the radio and he wrote a regular column in the San Francisco-based The Daily People's World for the workers. San Francisco had a strong labor union tradition which thrived in Santa Clara County. During the "March Inland" organizing drive the International Longshore and Warehouse Union (ILWU) backed the Cannery and Agricultural Workers' Industrial Union (CAWIU), a Communist-controlled union headquartered in San Jose, which had considerable success organizing farm and cannery workers in the Santa Clara Valley and elsewhere in California until it was suppressed and its leaders jailed in 1934 by the State of California following sustained attacks by business and political forces which, in San Jose, resulted in an atmosphere of terror (the low point of which was a public lynching tacitly supported by James Rolph, the Governor of California).{{cite book|author1=Glenda Matthews|title=Silicon Valley, Women, and the California Dream: Gender, Class, and Opportunity in the Twentieth Century|date=November 20, 2002|publisher=Stanford University Press|location=Stanford, California|isbn=978-0804747967|pages=[https://archive.org/details/siliconvalleywom00matt/page/53 53–64]|edition=1|url=https://archive.org/details/siliconvalleywom00matt/page/53|access-date=January 16, 2015|format=trade paperback}} The canneries, with a segregated seasonal work force of white women, were eventually organized, at first by an AFL-affiliated company union, but one which gradually evolved, thanks to rank and file efforts, into a union which genuinely represented cannery workers.{{cite book|author1=Glenda Matthews|title=Silicon Valley, Women, and the California Dream: Gender, Class, and Opportunity in the Twentieth Century|date=November 20, 2002|publisher=Stanford University Press|location=Stanford, California|isbn=978-0804747967|pages=[https://archive.org/details/siliconvalleywom00matt/page/48 48–80]|edition=1|url=https://archive.org/details/siliconvalleywom00matt/page/48|access-date=January 16, 2015|format=trade paperback}}
=War and industry=
The fruit industry gradually recovered, and by the early 1940s, prosperity returned to the valley.{{Citation needed|date=March 2023}} Wartime production associated with World War II brought industry to the valley such as building of marine engines for Liberty ships by the Joshua Hendy Iron Works, now Northrop Grumman Marine Systems{{cite web|title=Northrop Grumman Marine Systems Celebrates 100 Years in Operation in Sunnyvale, California|url=http://www.irconnect.com/noc/press/pages/news_releases.html?d=104238|website=Irconnect.com|access-date=7 November 2017}} in Sunnyvale; landing craft were built by Food Machinery Corporation, which later built the M113 armored personnel carrier, the Bradley Fighting Vehicle, and the XR311 at its facility in Santa Clara;{{Citation needed|date=March 2023}} and an IBM factory began manufacturing punch cards in San Jose in 1943.{{Citation needed|date=March 2023}}
About 1,000 Japanese were interned, losing substantial property. Wartime production drew workers, including women, from the orchards and canneries; they were replaced by Mexican Americans from Texas and California and by Mexican braceros. Neighborhoods in East San Jose, such as the Meadowfair district, became barrios.{{Citation needed|date=March 2023}}
The Polaris submarine-launched ballistic missile was built during the Cold War by Lockheed Missiles & Space Division in Sunnyvale for the United States Navy, while Northrop Grumman Marine Systems built the launch tubes and propulsion systems.{{Citation needed|date=March 2023}} For the most part, the defense industry and traditional electronics manufacturers, with the exception of IBM, in the Santa Clara Valley were unionized, mainly by the International Association of Machinists and Aerospace Workers, International Brotherhood of Electrical Workers, and Teamsters. The United Electrical, Radio and Machine Workers of America, a communist dominated union, but friendly to minority and women workers, gradually lost its place during the McCarthy era.{{cite book|author1=Glenda Matthews|title=Silicon Valley, Women, and the California Dream: Gender, Class, and Opportunity in the Twentieth Century|date=November 20, 2002|publisher=Stanford University Press|location=Stanford, California|isbn=978-0804747967|pages=[https://archive.org/details/siliconvalleywom00matt/page/119 119–22]|edition=1|url=https://archive.org/details/siliconvalleywom00matt/page/119|access-date=January 16, 2015|format=trade paperback}}
=Silicon Valley=
{{See also|Silicon Valley}}
In the 1950s, the first transistor industries were established in the area. Led by Stanford University, the lower San Francisco Peninsula became a global high-tech hub known as Silicon Valley.{{cite book|author1=Glenda Matthews|title=Silicon Valley, Women, and the California Dream: Gender, Class, and Opportunity in the Twentieth Century|date=November 20, 2002|publisher=Stanford University Press|location=Stanford, California|isbn=978-0804747967|pages=[https://archive.org/details/siliconvalleywom00matt/page/81 81–146]|edition=1|url=https://archive.org/details/siliconvalleywom00matt/page/81|access-date=January 16, 2015|format=trade paperback}} The name refers to silicon, the most common semiconductor used to produce microchips and other electronic devices.
The borders of Silicon Valley have been variously defined. Most observers include the entirety of Santa Clara County and the southern portions of San Mateo and Alameda counties, while others extend the region northwest to San Francisco or northeast to San Ramon.{{Cite news|url=https://www.mercurynews.com/2012/04/19/obrien-welcome-to-the-new-and-expanded-silicon-valley/|title=Welcome to the new and expanded Silicon Valley|last=O'Brien|first=Shaun|date=2012-04-19|work=The Mercury News|access-date=2018-04-10|language=en-US}}
=San Jose=
In 1950, Dutch Hamann was appointed city manager of San Jose. Hamann's boosterism was supported by Joe Ridder, publisher of the San Jose Mercury. In power until 1969, Hamann created a master plan for San Jose and embarked on a program of annexation that increased the area of San Jose from 17 square miles to 136.7 square miles.{{Citation needed|date=March 2023}} The main bargaining chip was the superior sewage system built to handle cannery waste.{{Citation needed|date=March 2023}} To overcome resistance by school districts, who otherwise would have lost their tax base, annexed areas were allowed to maintain independent school districts. This resulted in some parts of the city, such as East San Jose, having low-quality segregated school systems with a low tax base while school systems in other parts of San Jose had an ample tax base and high-quality schools.{{Citation needed|date=March 2023}} The population of San Jose increased from 95 thousand in 1950 to 446 thousand in 1970. There were critics: Santa Clara County Planning Director Karl Belser, who opposed urban sprawl, commented, "Perhaps the only use we will ever find for the hydrogen bomb will be to erase this great mistake from the face of the earth."{{Citation needed|date=March 2023}} Housing for each additional 1000 people took 257 acres of land.{{cite book|author1=Glenda Matthews|title=Silicon Valley, Women, and the California Dream: Gender, Class, and Opportunity in the Twentieth Century|date=November 20, 2002|publisher=Stanford University Press|location=Stanford, California|isbn=978-0804747967|pages=[https://archive.org/details/siliconvalleywom00matt/page/95 95–102]|edition=1|url=https://archive.org/details/siliconvalleywom00matt/page/95|access-date=January 16, 2015|format=trade paperback}} In more recent years, San Jose and the Santa Clara Valley have suffered from extensive droughts in California to the extent that some residents may run out of household water by the summer of 2022.{{cite web |last1=Dorsey |first1=Dustin |title=Some San Jose residents could run out of water by summer if region doesn't get rain, expert says |url=https://abc7news.com/rain-california-drought-2022-san-jose-weather-western/11571287/ |website=abc7news.com |access-date=12 June 2023 |archive-url=https://web.archive.org/web/20230414003756/https://abc7news.com/amp/rain-california-drought-2022-san-jose-weather-western/11571287/ |archive-date=Apr 14, 2023 |language=en-us |date=February 16, 2022 |url-status=live}}{{Needs update|date=March 2023}}
=Schools=
Funding for public schools in upscale communities in the Santa Clara Valley is often supplemented by grants from private foundations set up for that purpose and funded by local residents. Schools in less favorable demographics must depend on state funding.{{cite magazine|author1=George Packer|title=Change the World Silicon Valley transfers its slogans—and its money—to the realm of politics.|url=http://www.newyorker.com/magazine/2013/05/27/change-the-world|access-date=July 30, 2015|magazine=The New Yorker|date=May 27, 2013|quote=In wealthy districts, the public schools have essentially been privatized; they insulate themselves from shortfalls in state funding with money raised by foundations they have set up for themselves.}}
Cities and towns
Image:AlumRockViewSiliconValley w.jpg over northern San Jose (downtown is at far left) and other parts of the valley. The valley runs north to south in the picture.]]
Cities and towns in the Santa Clara Valley include (in alphabetical order):{{Citation needed|date=April 2018}}
- Campbell
- Cupertino
- Gilroy
- Hollister
- Los Gatos
- Los Altos
- Los Altos Hills
- Milpitas
- Monte Sereno
- Morgan Hill
- Mountain View
- Palo Alto
- San Martin
- San Jose
- San Juan Bautista
- Santa Clara
- Saratoga
- Sunnyvale
Because technology companies have spread out from Silicon Valley, Fremont and Newark, even though they are not in Santa Clara County, are often included in discussions about Silicon Valley, or, in the case of Fremont, referred to as the "Gateway to the Silicon Valley" (a title also claimed occasionally by San Jose, Union City, and several other locations). Similarly, Palo Alto, while in Santa Clara County and considered part of Silicon Valley, is on the San Francisco Peninsula.{{Citation needed|date=March 2023}}
Image:San Jose California Skyline.jpg is the largest city in the Santa Clara Valley.]]
File:South San Francisco Bay viewed from Mission Peak in Fremont, California.JPG Regional Preserve in Fremont]]
Notable structures
{{Further|List of attractions in Silicon Valley}}
There are a number of well-known structures and sites of interest in the South Bay:
- Apple Park, Cupertino
- Hewlett-Packard, Palo Alto
- Stanford University, Palo Alto
- SAP Center, downtown San Jose
- Hayes Mansion, Southern San Jose
- Plaza de César Chávez, downtown San Jose
- Cathedral Basilica of Saint Joseph, downtown San Jose
- Winchester Mystery House, Western San Jose
- Santana Row, Western San Jose
- Lick Observatory, Mount Hamilton
- Rosicrucian Egyptian Museum, Central San Jose
- Mexican Heritage Plaza, Eastern San Jose
- History Park at Kelley Park, Central San Jose
- Children's Discovery Museum of San Jose, Downtown San Jose
- San Jose International Airport, uptown San Jose
- San Jose Museum of Art, downtown San Jose
- San Jose State University, downtown San Jose
- Santa Clara University, Santa Clara (which includes the original Santa Clara Mission site)
- California's Great America, Santa Clara
- The Tech Interactive, downtown San Jose
- Moffett Federal Airfield, Sunnyvale/Mountain View
- Yahoo!, Sunnyvale
- LinkedIn, Sunnyvale
- Alviso, Northern San Jose (sea access/ main port of goods from Asia in 1800 before Oakland took over the following century)
- Berryessa Flea Market, Northern San Jose (previously Earth's largest)
- Gurdwara Sahib of San Jose, Eastern San Jose (Sikh Temple built by President Jit Singh Bainiwal)
- Levis Stadium, Santa Clara
Geology
Santa Clara Valley was created by the sudden growth of the Santa Cruz Mountains and the Diablo Range during the later Cenozoic era. This was a period of intense mountain building in California when the folding and thrusting of the Earth's crust, combined with active volcanism, gave shape to the present state of California. Hence, Santa Clara Valley is a structural valley, created by mountain building, as opposed to an erosional valley, which is a valley that has undergone the wearing away of the Earth's surface by natural agents.{{Citation needed|date=March 2023}} The underlying geology of the Santa Cruz Mountains was also formed by the sediment of the ancient seas, where marine shale points to Miocene origin. Today, evidence of this is still found in the Santa Cruz Mountains, where shark's teeth and the remains of maritime life are still found as high as Scotts Valley, a city nestled in the mountains.{{cite web | url=http://www.nps.gov/nr/travel/santaclara/history.htm | title=Early History | work=Santa Clara County: California's Historic Silicon Valley | publisher=National Park Service | access-date=2008-01-18}} The highest peak on the Santa Cruz Mountain Range side of the valley is Loma Prieta at 3,790 feet. The highest peak in the Diablo Range side of the valley is Mount Hamilton, specifically Copernicus Peak at 4,370 feet elevation. It is the highest peak in Santa Clara County.{{Citation needed|date=March 2023}}
The valley is a graben between the San Andreas and Hayward faults.{{cite web|url=http://www.valleywater.org/Programs/TeachersStudents/TeacherMaterials/WaterHistoryTeachersGuide/SantaClaraCountyWaterHistory.aspx|title=Timeline of the history of water in Santa Clara County - Santa Clara Valley Water District|website=Valleywater.org|access-date=7 November 2017}}
=Quicksilver mine=
During the 19th century, 37,388 metric tons of mercury were extracted from the New Almaden mine south of San Jose and northeast of Santa Cruz. The area, closed for many years, resulted in pollution of the Guadalupe River and South San Francisco Bay.{{cite web|title=New Almaden Mine CERCLA Site|url=https://www.wildlife.ca.gov/OSPR/NRDA/New-Almaden-Mine-CERCLA|website=California Department of Fish and Wildlife|access-date=June 17, 2016|quote=LOCATION: Guadalupe River and South San Francisco Bay, Santa Clara County}} After intermittent mining operations finally ceased in the 20th century, the area was purchased by Santa Clara County to be used as a park and was designated a National Historic Landmark.{{cite web|url=http://www.newalmaden.org|title=New Almaden Quicksilver County Park Association Homepage|website=Newalmaden.org|access-date=7 November 2017}}
Climate
Image:AlumRockViewSiliconValley w.jpg
The climate of the Santa Clara Valley in California is a Mediterranean climate{{cite web |url=http://www.wrh.noaa.gov/mtr/sfd_sjc_climate/sjc/SJC_CLIMATE3.php |title=Archived copy |website=www.wrh.noaa.gov |access-date=15 January 2022 |archive-url=https://web.archive.org/web/20041215213648/http://www.wrh.noaa.gov/mtr/sfd_sjc_climate/sjc/SJC_CLIMATE3.php |archive-date=15 December 2004 |url-status=dead}} with warm, very dry summers and mild, fairly rainy winters. Today, the Valley attracts many people from the East Coast with its warm and sunny climate. The Santa Clara Valley receives on average 330 sunny days per year. The northern areas of the valley (such as Palo Alto or Mountain View) have greater marine influences with temperatures rarely rising above {{convert|85|°F|°C}} while in the southern areas and near the mountains (such as Los Gatos, Morgan Hill, or Gilroy) the temperature frequently exceeds {{convert|95|°F|°C}} in the summer months. Winter is the rainy season, but still quite sunny. Winter highs range from {{convert|57|to|66|°F|°C}}{{cite web|url=https://images.google.com/imgres?imgurl=http://www.worldexecutive.com/cityguides/climatecharts/san_jose.jpg&imgrefurl=http://www.worldexecutive.com/locations/north_america/usa/california/san_jose/weather.html&usg=__d4PsFa06Z8bYqPp5BJ8V9DrX-g4=&h=274&w=300&sz=82&hl=en&start=13&um=1&tbnid=efedLPyK31DGAM:&tbnh=106&tbnw=116&prev=/images?q=Climate+of+San+Jose&hl=en&safe=off&rlz=1R2TSHB_enUS336&sa=N&um=1|title=Google Image Result|website=Images.google.com|access-date=7 November 2017}} while lows range from {{convert|40|to|48|°F|°C}}. Summer highs range from {{convert|82|to|95|°F|°C}} and summer lows range from {{convert|53|to|58|°F|°C}}.{{Citation needed|date=March 2023}}
The record high for the Santa Clara Valley was recorded in Los Gatos on June 9, 2000, with a temperature of {{convert|114|°F|°C}} and the record low was recorded in Gilroy on December 23, 1990, with a temperature of {{convert|16|°F|°C}}.{{cite web|url=http://www.weatherbyday.com/california/ |title=Weather in California|California Weather for Tourists and Residents |website=www.weatherbyday.com |access-date=15 January 2022 |archive-url=https://web.archive.org/web/20090405063211/http://www.weatherbyday.com/california/ |archive-date=5 April 2009 |url-status=dead}} Temperatures drop below {{convert|40|°F|°C}} on average of 17 days per year, below freezing on average of 4 days per year and below {{convert|30|°F|°C}} on average of 0 days per year (none).{{Citation needed|date=March 2023}}
More recently, extensive droughts in California, further complicated by drainage of the local Anderson reservoir for seismic repairs, have strained the Valley's water security.[https://www.theguardian.com/us-news/2021/jun/12/dire-situation-silicon-valley-cracks-down-on-water-use-as-california-drought-worsens] “‘Dire situation’: Silicon Valley cracks down on water use as California drought worsens”. Accessed June 23, 2022.[https://gilroydispatch.com/anderson-reservoir-will-close-to-public-through-2030/] "Anderson Reservoir will close to public through 2030". Accessed March 30, 2022.
=Temperatures=
{{Weather box
|location = San Jose, California
|single line = yes
|Jan record high F = 83
|Feb record high F = 85
|Mar record high F = 87
|Apr record high F = 95
|May record high F = 101
|Jun record high F = 109
|Jul record high F = 108
|Aug record high F = 105
|Sep record high F = 104
|Oct record high F = 101
|Nov record high F = 85
|Dec record high F = 83
|year record high F = 109
|Jan high F = 62
|Feb high F = 65
|Mar high F = 70
|Apr high F = 73
|May high F = 77
|Jun high F = 82
|Jul high F = 84
|Aug high F = 84
|Sep high F = 81
|Oct high F = 76
|Nov high F = 65
|Dec high F = 62
|year high F = 72.9
|Jan low F = 43
|Feb low F = 45
|Mar low F = 46
|Apr low F = 48
|May low F = 52
|Jun low F = 55
|Jul low F = 57
|Aug low F = 57
|Sep low F = 56
|Oct low F = 52
|Nov low F = 45
|Dec low F = 43
|year low F = 49.8
|Jan record low F = 24
|Feb record low F = 26
|Mar record low F = 30
|Apr record low F = 35
|May record low F = 37
|Jun record low F = 42
|Jul record low F = 47
|Aug record low F = 47
|Sep record low F = 42
|Oct record low F = 36
|Nov record low F = 21
|Dec record low F = 20
|year record low F = 20
|Jan precipitation inch = 3.2
|Feb precipitation inch = 2.8
|Mar precipitation inch = 2.6
|Apr precipitation inch = 1.0
|May precipitation inch = 0.4
|Jun precipitation inch = 0.1
|Jul precipitation inch = 0.1
|Aug precipitation inch = 0.1
|Sep precipitation inch = 0.2
|Oct precipitation inch = 0.9
|Nov precipitation inch = 1.2
|Dec precipitation inch = 2.0
|year precipitation inch = 15.1
|source 1 = AccuWeather.com{{cite web |url=http://www.accuweather.com/en/us/san-jose-ca/95110/weather-forecast/347630
|title=San Jose, CA Typical Weather |publisher=Accuweather |access-date=2 March 2009}}
|date=August 2010
}}.
{{Weather box
|location = Campbell, California
|single line = yes
|Jan record high F = 83
|Feb record high F = 86
|Mar record high F = 89
|Apr record high F = 93
|May record high F = 98
|Jun record high F = 110
|Jul record high F = 108
|Aug record high F = 106
|Sep record high F = 106
|Oct record high F = 100
|Nov record high F = 86
|Dec record high F = 83
|year record high F = 110
|Jan high F = 63
|Feb high F = 66
|Mar high F = 71
|Apr high F = 75
|May high F = 79
|Jun high F = 82
|Jul high F = 85
|Aug high F = 85
|Sep high F = 82
|Oct high F = 76
|Nov high F = 66
|Dec high F = 63
|year high F = 74
|Jan low F = 43
|Feb low F = 46
|Mar low F = 47
|Apr low F = 49
|May low F = 52
|Jun low F = 56
|Jul low F = 57
|Aug low F = 57
|Sep low F = 55
|Oct low F = 51
|Nov low F = 46
|Dec low F = 43
|year low F = 50
|Jan record low F = 22
|Feb record low F = 26
|Mar record low F = 29
|Apr record low F = 35
|May record low F = 38
|Jun record low F = 42
|Jul record low F = 42
|Aug record low F = 40
|Sep record low F = 38
|Oct record low F = 36
|Nov record low F = 29
|Dec record low F = 19
|year record low F = 19
|Jan precipitation inch = 4.7
|Feb precipitation inch = 4.1
|Mar precipitation inch = 2.6
|Apr precipitation inch = 0.6
|May precipitation inch = 0.3
|Jun precipitation inch = 0.1
|Jul precipitation inch = 0.1
|Aug precipitation inch = 0.1
|Sep precipitation inch = 0.3
|Oct precipitation inch = 0.7
|Nov precipitation inch = 2.5
|Dec precipitation inch = 4.3
|year precipitation inch = 21.6
|date=August 2010
}}
{{Weather box
|location = Los Gatos, California
|single line = yes
|Jan record high F = 83
|Feb record high F = 86
|Mar record high F = 89
|Apr record high F = 96
|May record high F = 101
|Jun record high F = 114
|Jul record high F = 113
|Aug record high F = 107
|Sep record high F = 109
|Oct record high F = 103
|Nov record high F = 87
|Dec record high F = 83
|year record high F = 114
|Jan high F = 63
|Feb high F = 66
|Mar high F = 72
|Apr high F = 76
|May high F = 80
|Jun high F = 84
|Jul high F = 86
|Aug high F = 86
|Sep high F = 84
|Oct high F = 77
|Nov high F = 66
|Dec high F = 63
|year high F = 75
|Jan low F = 43
|Feb low F = 46
|Mar low F = 47
|Apr low F = 49
|May low F = 52
|Jun low F = 56
|Jul low F = 57
|Aug low F = 57
|Sep low F = 55
|Oct low F = 51
|Nov low F = 46
|Dec low F = 43
|year low F = 50
|Jan record low F = 22
|Feb record low F = 25
|Mar record low F = 28
|Apr record low F = 35
|May record low F = 37
|Jun record low F = 41
|Jul record low F = 41
|Aug record low F = 40
|Sep record low F = 38
|Oct record low F = 36
|Nov record low F = 28
|Dec record low F = 19
|year record low F = 19
|Jan precipitation inch = 4.9
|Feb precipitation inch = 4.1
|Mar precipitation inch = 2.8
|Apr precipitation inch = 0.6
|May precipitation inch = 0.3
|Jun precipitation inch = 0.1
|Jul precipitation inch = 0.1
|Aug precipitation inch = 0.1
|Sep precipitation inch = 0.3
|Oct precipitation inch = 0.7
|Nov precipitation inch = 2.8
|Dec precipitation inch = 4.8
|year precipitation inch = 22.8
|date=August 2010
}}
{{Weather box
|location = Sunnyvale, California
|single line = yes
|Jan record high F = 75
|Feb record high F = 84
|Mar record high F = 85
|Apr record high F = 94
|May record high F = 100
|Jun record high F = 107
|Jul record high F = 105
|Aug record high F = 101
|Sep record high F = 105
|Oct record high F = 100
|Nov record high F = 89
|Dec record high F = 75
|Jan high F = 61
|Feb high F = 62
|Mar high F = 64
|Apr high F = 69
|May high F = 73
|Jun high F = 77
|Jul high F = 79
|Aug high F = 79
|Sep high F = 78
|Oct high F = 73
|Nov high F = 64
|Dec high F = 61
|Jan low F = 42
|Feb low F = 43
|Mar low F = 46
|Apr low F = 47
|May low F = 51
|Jun low F = 55
|Jul low F = 57
|Aug low F = 57
|Sep low F = 55
|Oct low F = 50
|Nov low F = 44
|Dec low F = 42
|Jan record low F = 21
|Feb record low F = 24
|Mar record low F = 22
|Apr record low F = 31
|May record low F = 33
|Jun record low F = 40
|Jul record low F = 41
|Aug record low F = 44
|Sep record low F = 41
|Oct record low F = 34
|Nov record low F = 15
|Dec record low F = 20
|Jan precipitation inch = 3.24
|Feb precipitation inch = 3.18
|Mar precipitation inch = 2.65
|Apr precipitation inch = 0.89
|May precipitation inch = 0.35
|Jun precipitation inch = 0.11
|Jul precipitation inch = 0.03
|Aug precipitation inch = 0.08
|Sep precipitation inch = 0.19
|Oct precipitation inch = 0.85
|Nov precipitation inch = 1.83
|Dec precipitation inch = 2.31
|source 1 = National Weather Service{{cite web
| url=http://www.weather.com/outlook/travel/vacationplanner/wxclimatology/monthly/graph/USCA1116?from=36hr_bottomnav_vacation |title=Vacation Planner|access-date=2009-05-22 |work=Weather Channel}}
|date=August 2010
}}
{{Weather box
|location = Mountain View, California
|single line = yes
|Jan high C = 15
|Feb high C = 17
|Mar high C = 18
|Apr high C = 21
|May high C = 23
|Jun high C = 25
|Jul high C = 26
|Aug high C = 26
|Sep high C = 26
|Oct high C = 23
|Nov high C = 18
|Dec high C = 15
|Jan low C = 5
|Feb low C = 6
|Mar low C = 8
|Apr low C = 8
|May low C = 11
|Jun low C = 11
|Jul low C = 11
|Aug low C = 11
|Sep low C = 11
|Oct low C = 9
|Nov low C = 7
|Dec low C = 5
|Jan precipitation mm = 82.3
|Feb precipitation mm = 80.8
|Mar precipitation mm = 67.3
|Apr precipitation mm = 22.6
|May precipitation mm = 8.9
|Jun precipitation mm = 2.8
|Jul precipitation mm = 0.8
|Aug precipitation mm = 2.0
|Sep precipitation mm = 4.8
|Oct precipitation mm = 21.6
|Nov precipitation mm = 46.5
|Dec precipitation mm = 58.7
|source 1 = http://www.weather.com/outlook/travel/businesstraveler/wxclimatology/monthly/graph/94043?from=text_bottomnav_business#climograph
|date=August 2010
}}
See also
- Santa Clara Valley Habitat Conservation Plan
- {{Portal-inline|San Francisco Bay Area}}
References
{{Reflist}}
Further reading
- Yvonne Jacobson, Passing Farms, Enduring Values: California's Santa Clara Valley
- Robin Chapman, California Apricots: The Lost Orchards of Silicon Valley
External links
- [http://www.historysanjose.org History San José collects, preserves and celebrates the stories of diversity and innovation in San José and the Santa Clara Valley]
- [http://mthamilton.ucolick.org/hamcam/ Up-to-the-minute view of San Jose from the Mount Hamilton web camera]
{{SF Bay Area}}
{{California}}
{{Authority control}}
Category:Valleys of San Benito County, California
Category:Valleys of Santa Clara County, California