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Before irrigation development, the San Joaquin River and its tributaries once supported the third largest run of Pacific salmon in California, including prodigious spring, summer, fall, and late-fall runs of chinook salmon. [132]
San Joaquin River, river in central California, U.S. It is formed by forks rising on Mount Goddard in the Sierra Nevada and flows southwest and then north-northwest past Stockton to join the Sacramento River above Suisun Bay after a course of 350 miles (560 km).
- The Editors of Encyclopaedia Britannica
Feb 20, 2024 · The San Joaquin River is fed by three main tributaries: the Merced, Tuolumne, and Stanislaus rivers. In addition to these, the Consumnes River, the Mokelumne River, and the Calaveras River all flow into the San Joaquin River where it meets the Delta, which is influenced by tidal movements.
- Focal Species
- Cosumnes River
- Mokelumne River
- Calaveras River
- Stanislaus River
- Tuolumne River
- Merced River
- San Joaquin River
- More Information
CCV steelhead and CV spring-run Chinook salmon are the two listed (identified as threatened or endangered under the Endangered Species Act) salmonid species that inhabit the San Joaquin River Basin. CCV steelhead and CV spring-run Chinook salmon are both anadromous fish, meaning these fish are hatched from eggs in rivers and will use riverine and e...
The Cosumnes River watershed covers approximately 940 square miles (approximately 600,000 acres), from its headwaters in the Sierra Nevada mountain range to its confluence with the Mokelumne River in the Sacramento-San Joaquin Delta. Elevations in the watershed range from a peak of 7,500 feet to slightly below mean sea level in the Delta. The water...
Photo: John Benson The Mokelumne River watershed lies on the western slope of the Sierra Nevada mountain range in Alpine, Amador, and Calaveras counties. The lower Mokelumne River watershed, downstream of Camanche Dam, is located in the Central Valley and the Sacramento-San Joaquin Delta in San Joaquin and Sacramento Counties. The watershed covers ...
Calaveras River at Bellota Weir The Calaveras River watershed is located in northern California in Calaveras, Stanislaus, and San Joaquin counties. The river is a tributary to the lower San Joaquin River and drains a watershed area of 470 square miles (approximately 300,000 acres) above the foothill line. Major hydrologic features of the upper wate...
The lower Stanislaus River near the confluence of the San Joaquin River. The Stanislaus River is one of the largest tributaries to the San Joaquin River. The watershed includes an area of 1,195 square miles (approximately 760,000 acres), and the river flows 161 miles from the Sierra Nevada mountain range to its confluence with the lower San Joaquin...
Spawning habitat downstream of the La Grange Dam The Tuolumne River originates as an alpine stream in the high elevations of the Sierra Nevada mountain range. The watershed includes 1,870 square miles (approximately 1.2 million acres), and the river flows southwest for 155 miles from Yosemite National Park to its confluence with the San Joaquin Riv...
Aerial view of the Merced River Hatchery (1998) The Merced River originates as an alpine stream in the high elevations of the Sierra Nevada mountain range. The watershed comprises 1,270 square miles (approximately 810,000 acres), and the river flows 135 miles from the southern part of Yosemite National Park to its confluence with the lower San Joaq...
A portion of the lower San Joaquin River. The San Joaquin River flows west from the high elevations of the Sierra Nevada mountain range to the valley floor and then heads north to Vernalis where it flows into the Delta. The mainstem of the San Joaquin River is divided into three sections: the upper, middle, and lower sections. The upper San Joaquin...
More than 100 miles of the San Joaquin’s main stem have been dry for over 50 years, and water diversions along the tributaries take more than 70 percent of the natural flow. Before irrigation development, the river and its tributaries once supported the third-largest run of Pacific salmon in California, measuring more than 200,000.
May 2, 2024 · The entire watershed including the rivers many tributaries covers 31,800 square miles and supports the most production and profitable agriculture in the world, irrigating more than two million acres of arid land and supplying 40% of the produce consumed in the U.S.
The San Joaquin River is one of the two major rivers of California, in the United States. At 330 miles (530 km) long, it is the second longest river in California, after the Sacramento River. [1] It begins on the west Sierra Nevada Mountains and flows west and north to its end at San Francisco Bay, at the Sacramento-San Joaquin Delta.
