Title: California Aqueduct
Content:  The Governor Edmund G. Brown California Aqueduct is a system of canals, tunnels, and pipelines that conveys water collected from the Sierra Nevada Mountains and valleys of Northern and Central California to Southern California. Named after California Governor Edmund Gerald "Pat" Brown Sr., the over 400 mi aqueduct is the principal feature of the California State Water Project. The aqueduct begins at the Clifton Court Forebay at the southwestern corner of the Sacramento–San Joaquin River Delta. The aqueduct then heads south, eventually splitting into three branches: the Coastal Branch, ending at Lake Cachuma in Santa Barbara County; the West Branch, conveying 
Title: Water in California
Content:  There are six main systems of aqueducts and infrastructure that redistribute and transport water in California: the State Water Project, the Central Valley Project, several Colorado River delivery systems, the Los Angeles Aqueduct, the Tuolumne River/Hetch Hetchy system, and the Mokelumne Aqueduct.
Title: Irvine Ranch Water District
Content:  The State Water Project, also known as the California Aqueduct, transports water 600 mi from Northern California to the southern portion of the state. It is owned and operated by the State of California and is the longest aqueduct system in the world, featuring 23 dams and reservoirs, 22 pumping plants that lift water to heights of 3,500 ft, and six power plants. The aqueduct consists of 473 mi of canals, 175 mi of pipeline and 20 mi of tunnels.
Title: Economy of California
Content:  in the spring from snow melt in the Sierra Nevada (U.S.) and stored for later irrigation use with an extensive system of dams and canals. The even larger California State Water Project was formed in the 1950s, consisting of the California Aqueduct and its ancillary dams. The California Aqueduct, developed at the cost of several billion dollars, helps store and transport water from the Feather River Basin to agricultural and municipal users statewide. The Colorado River Aqueduct delivers water from the Colorado River to the Imperial Valley of California area and since 1905 the Los Angeles Aqueduct delivers water over from the 
Title: California Aqueduct
Content:  The aqueduct serves 35 million people and 5.7 million acres of farmland, and begins at the San Joaquin-Sacramento River Delta at the Banks Pumping Plant, which pumps from the Clifton Court Forebay. Water is pumped by the Banks Pumping Plant to the Bethany Reservoir. The reservoir serves as a forebay for the South Bay Aqueduct via the South Bay Pumping Plant. From the Bethany Reservoir, the aqueduct flows by gravity approximately 60 mi to the O'Neill Forebay at the San Luis Reservoir. From the O'Neill Forebay, it flows approximately 16 mi to the Dos Amigos Pumping Plant. After Dos Amigos, the aqueduct flows about 95 mi to 
Title: California Aqueduct
Content:  Tehachapi Mountains. Water flows through the aqueduct in a series of abrupt rises and gradual falls. The water flows down a long segment, built at a slight grade, and arrives at a pumping station powered by Path 66 or Path 15. The pumping station raises the water, where it again gradually flows downhill to the next station. However, where there are substantial drops, the water's potential energy is recaptured by hydroelectric plants. The initial pumping station fed by the Sacramento River Delta raises the water 240 ft, while a series of pumps culminating at the Edmonston Pumping Plant raises the water 1926 ft over the Tehachapi Mountains. 
Title: Water in California
Content:  The Hetch Hetchy Aqueduct carries water from the Tuolumne River to San Francisco and other Bay Area regions. The system starts in Hetch Hetchy Valley, inside Yosemite National Park. The system also generates up to 400MW of electrical power, depending on rainfall, most of which is sent to San Francisco via city-owned power lines. After water leaves Hetch Hetchy, it passes through tunnels towards powerhouses. Three pipes then bring the water across the Central Valley. Concerns about the Hetch Hetchy Aqueduct's ability to withstand earthquakes led to a $1.7 billion bond, approved by voters in November 2002.
Title: History of California (1900–present)
Content:  Utility District (EBMUD), is the primary water source for 35 communities in Alameda and Contra Costa counties, including Berkeley and Oakland. EBMUD holds water rights to almost all of the 30000 acre in the Mokulumne River watershed and 25000 acre in other watersheds. EBMUD also has an American River water right that could be sent to the Mokelumne Aqueduct through the Folsom South Canal.  The California Aqueduct is a system of canals, tunnels, and pipelines that conveys water collected from the Sierra Nevada mountains and valleys of northern and central California to southern California. The Department of Water Resources (DWR) operates and maintains 
Title: Water in California
Content:  The North Bay Aqueduct of the California State Water Project delivers an annual average of 39309 acre feet of water to urban communities and agricultural users in Napa, Solano, Sonoma and Marin counties. That water is diverted from the Sacramento-San Joaquin River Delta Estuary, a water hub that serves as the junction of south-, west-, and north-flowing rivers draining the Cascade and Sierra Nevada mountain ranges. Certain municipalities north of San Francisco Bay, including Santa Rosa and Petaluma, are served by the Sonoma County Water Agency. Their primary water source is the Russian River. However, the Russian River owes its summer flow 
Title: Central Valley (California)
Content:  and urban areas south of the Tehachapi Mountains. Runoff from the Sacramento and San Joaquin Rivers is intercepted in the delta through a series of pumps that divert water into the California Aqueduct, which runs south along the length of the San Joaquin Valley. In parallel, pumps divert water into the Delta–Mendota Canal. The flow of the Sacramento River is further supplemented by a tunnel from the Trinity River (a tributary of the Klamath River, northwest of the Sacramento Valley) near Redding. Cities of the San Francisco Bay Area, also needing water, built aqueducts from the Mokelumne River and Tuolumne River that run east to west across the middle part of the Central Valley.

Question: where does the water from the california aqueduct come from?
Answer: Sierra Nevada Mountains.
the Sierra Nevada Mountains.