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Encyclopedia > San Joaquin River

The San Joaquin River, 330 miles (530 km) long, is the second-longest river in California, United States. The Murray River in Australia. ... Official language(s) English Capital Sacramento Largest city Los Angeles Area  Ranked 3rd  - Total 158,302 sq. ...

It originates high on the western slopes of the Sierra Nevada and drains most of the area from the southern border of Yosemite, south to Kings Canyon National Park, making it the second largest river drainage in the state. The San Joaquin River's tributaries include the Stanislaus River, Tuolumne River, Merced River, Calaveras River and Mokelumne River. The Sierra Nevada is a mountain range that is almost entirely in eastern California. ... Yosemite redirects here. ... This Article is about Kings Canyon National Park, USA. For Kings Canyon, Australia, see Kings Canyon, Northern Territory. ... A drainage basin is the area within the drainage basin divide (yellow outline), and drains the surface runoff and river discharge (blue lines) of a contiguous area. ... The Stanislaus River in California is one of the largest tributaries of the San Joaquin River. ... The Tuolumne River is one of the major rivers draining the western slope Sierra Nevada mountains of California. ... The Merced River is in California. ... The Calaveras River is a river in the California Central Valley. ... The Mokelumne River is a river flowing from the Sierras to a confluence with the San Joaquin River in the Central Valley of California. ...

The river originates at three locations. The South Fork begins at Martha Lake (37°05′39″N, 118°44′18″W) at an elevation of 11,004 feet (3354 m). The Middle Fork begins at Thousand Island Lake and joins the South Fork north of Balloon Dome in the Ansel Adams Wilderness. The North Fork, (a stream), begins at Twin Island Lakes and joins the Middle Fork east of Junction Butte 37°31′56″N, 119°10′55″W. The Ansel Adams Wilderness is a wilderness area in the Sierra Nevada of California,USA. The wilderness is part of the Inyo and Sierra National Forests. ...

The confluence passes through a narrow valley of which John Muir once said: "Certainly this Joaquin Canyon is the most remarkable in many ways of all I have entered." It eventually emerges from the foothills at what was once the town of Millerton, the location of Friant Dam since 1944, which forms Millerton Lake. John Muir (April 21, 1838 – December 24, 1914) was a Scottish-American polymath: environmentalist, naturalist, explorer, writer, inventor, and geologist. ... A photo of Friant Dam taken in 2003. ... Millerton Lake Millerton Lake is a lake near the town of Friant in Fresno County, California, about 15 miles north of downtown Fresno. ...

The river flows west to the trough of the Central Valley, where it is joined by the Sierra's other great rivers and then flows north to the San Joaquin-Sacramento River Delta and then San Francisco Bay. Water from the river is used to irrigate 1,500 square miles (1,000,000 acres) of highly productive farmland on the east side of the Central Valley where 200 kinds of produce are raised from oranges to cotton. The California Central Valley Part of the Valley as seen from overhead A typical Central Valley scene at ground level The California Central Valley is a large, flat valley that dominates the central portion of the state of California. ... The Sacramento Delta. ... San Francisco Bay, San Pablo Bay, and the Golden Gate The San Francisco Bay is a shallow, productive estuary through which water draining of approximately forty percent of California, flowing in Sacramento and San Joaquin rivers from the Sierra Nevada mountains, enters the Pacific Ocean. ... Orange—specifically, sweet orange—refers to the citrus tree Citrus sinensis and its fruit. ... Cotton ready for harvest. ...

Sedimentation has greatly reduced the San Joaquin River system's navigability. The Stockton Deep Water Channel makes the lower reach of the river navigable for ocean freighters as far inland as Stockton, but maintaining the channel requires extensive dredging. Sedimentation describes the motion of particles in solutions or suspensions in response to an external force such as gravity, centrifugal force or electric force. ... In physical geography, a channel is the physical confine of a river or slough, consisting of a bed and banks. ... A river or canal is Navigatable if the water is deep and wide enough, and not flowing too fast. ... Stockton is the name of several places: Stockton, Newcastle, New South Wales, Australia Stockton, Cheshire, England Stockton-on-Tees, County Durham, England Stockton, California, USA Stockton, Illinois, USA Stockton, Iowa, USA Stockton, Kansas, USA Stockton Springs, Maine, USA Stockton, Maryland, USA Stockton, Minnesota, USA Stockton, Missouri, USA Stockton, New Jersey...

Since the mid-19th century, the waters of the San Joaquin have been extensively manipulated and diverted for human use. It produces hydroelectricity for export to the Bay Area, provides water for irrigation for some of California's most productive farmlands, and provides the sole source of drinking water supply to a number of rural towns in California's Central Valley. Hydraulic turbine and electrical generator. ... High-altitude aerial view of irrigation in the Heart of the Sahara (, ) Irrigation (in agriculture) is the replacement or supplementation of rainfall with water from another source in order to grow crops. ...

The operations of Friant Dam have been controversial in recent years. Friant Dam was included in California's State Water Plan, which was approved by the voters of California in 1933. During the Depression, California could not finance the construction of the State Water Plan features, and it turned to the federal government for help. Friant Dam was constructed as part of the federal Bureau of Reclamation's Central Valley Project in the 1940s. Its purpose was to divert the waters of the San Joaquin to maximize their use to help people, both to irrigate crops and to provide groundwater recharge. As contemplated by the Central Valley Project Act, most of the waters of the San Joaquin River are diverted into canals so that the river remains dry for a 17-mile stretch between Gravelly Ford and the Mendota Pool except when flood control requires additional releases from the dam. At Mendota, water pumped from the Delta is delivered and used to rewet the river. Despite the federal Central Valley Project Act's (and the California voters') express authorization of this scheme, in 2004, a federal judge ruled the U.S. Bureau of Reclamation in violation of California law for not letting enough water flow to maintain the historic salmon population. Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of geologic formations. ... The United States Bureau of Reclamation (Formerly the United States Reclamation Service) is a division of the U.S. Department of the Interior which oversees water development projects in the western United States. ...

The San Joaquin river once supported the southernmost salmon run in North America. As a result of seasonal water diversions and the operation of upstream hydropower reservoirs, by 1928, the California Department of Fish and Game had issued a bulletin reporting that there were "very few" salmon remaining in the San Joaquin River above the Merced River and the "historical" salmon fishery that once existed had been "severely depleted." Although some sources claim that the river may have once supported large runs of both fall-run and spring-run Chinook salmon — up to 300,000 returning adults annually — these claims appear to be greatly exaggerated, given the river's hydrology, San Joaquin Valley temperatures, and the impacts of these factors on available salmon habitat. An official with the California Department of Fish and Game stated in 1930s that the spawning gravels in the river were only sufficient to support, at most, about 15,000 returning fish. During that same time (late 1930s - early 1940s), the salmon counts taken by the California Department of Fish and Game at the Mendota Dam fish ladder showed about 3,000-7,000 salmon returning each year to spawn. While some sources claim that steelhead trout may have also been present in the river in the 19th century, there is no known evidence to confirm this speculation. The Chinook or King Salmon is the largest salmon in North America and can grow up to 58 long and 125 pounds. ... World map showing North America A satellite composite image of North America. ... Binomial name Oncorhynchus tshawytscha (Walbaum, 1792) The Chinook salmon (Oncorhynchus tshawytscha) (derived from Russian чавыча), is a species of anadromous fish in the salmon family. ... Binomial name Oncorhynchus mykiss Walbaum, 1792 The Rainbow Trout (Oncorhynchus mykiss), also called steelhead trout, is a single species of trout native to the Pacific Ocean and in North American rivers and lakes west of the Rocky Mountains. ...

See also

  Results from FactBites:
San Joaquin River - Wikipedia, the free encyclopedia (587 words)
The river emerges from the foothills at what was once the town of Millerton, the location of Friant Dam since 1944, which forms Millerton Lake.
The river flows west to the trough of the Central Valley, where it is joined by the Sierra's other great rivers and then flows north to the San Joaquin-Sacramento River Delta and then San Francisco Bay.
Water from the river is used to irrigate 1,500 square miles of productive farmland on the east side of the Central Valley where 200 kinds of produce are raised from oranges to cotton.
San Joaquin County, California - Wikipedia, the free encyclopedia (547 words)
San Joaquin County is a county located in the United States of America in California's Central Valley, just east of the San Francisco Bay Area.
Stockton is a deep water port on the San Joaquin River.
San Joaquin County was one of the original counties of California, created in 1850 at the time of statehood.
  More results at FactBites »



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