The Santa Clara Valley runs south-southeast from the southern end of San Francisco Bay in Northern California in the United States. The northern, urbanized end of the valley is part of a region locally known as the "South Bay" and also part of the electronics research and manufacturing area known as Silicon Valley. Most of the Santa Clara Valley is in Santa Clara County, including its county seat, San Jose. The valley, named after the Spanish Mission Santa Clara, was for a time known as the Valley of Heart’s Delight for its high concentration of orchards, flowering trees, and plants.