The Sacramento–San Joaquin River Delta sits at the heart of California’s water system, where the state’s two largest rivers merge before flowing into San Francisco Bay. This low-lying maze of channels, islands, and wetlands acts as the main transfer point between northern water sources and the farms and cities of central and southern California. Nearly two-thirds of the state’s population depends, directly or indirectly, on water that passes through this delta. Geographically, the delta is extre