California is located on the west coast of the United States, bordered by the Pacific Ocean to the west, Oregon to the north, Nevada to the east, and Arizona to the southeast. The state features diverse landscapes, including coastal regions, mountain ranges like the Sierra Nevada, and vast deserts such as the Mojave Desert. The state's geography is characterized by its varied climate zones, ranging from Mediterranean along the coast to arid in the interior. Major rivers, including the Sacramento and San Joaquin, flow through California's fertile valleys, supporting agriculture and ecosystems.