Post-World War II demand for urban development in California's urban areas, most notably the San Francisco Bay Area and the Los Angeles/Inland Empire/San Diego, required water resources to support it. Moreover, rapid development of agriculture in the southern Central Valley required far more water than available locally. The Feather River in the Sacramento Valley was looked to as a water source, leading to public financing of the California State Water Project. This transports water to the southern San Joaquin Valley and vast urban lands south of the Tehachapi Mountains.