The Sacramento-San Joaquin River Delta is a vast estuary located in Northern California, where the Sacramento River and San Joaquin River converge before flowing into San Francisco Bay. This region is crucial for water supply, agriculture, and wildlife habitat, supporting diverse ecosystems and numerous species. The Delta is characterized by its intricate network of islands, waterways, and marshlands. It plays a vital role in California's water management system, providing irrigation for farms and drinking water for millions of residents. The area is also a popular destination for recreational activities like fishing, boating, and birdwatching.