San Leandro Creek is a major watershed located in the East Bay region of the San Francisco Bay Area. The creek flows 11 miles from its headwaters in the Oakland Hills through the cities of San Leandro and Hayward, eventually emptying into San Francisco Bay. Historically, the creek and surrounding area were inhabited by the Ohlone people. Today, the creek serves as a critical source of water for local communities and agriculture, with surface flow provided by the East Bay Municipal Utility District and snowpack providers including the Sierra Nevada Mountains. The watershed also supports agricultural activities such as vineyards and farming, as well as recreational activities like hiking and fishing. However, the creek and surrounding area face challenges from pollution, erosion, and urbanization.