Suisun Marsh is a large estuarine wetland located in California, covering approximately 11,000 acres. It is situated between the Sacramento and San Joaquin Rivers and serves as a critical habitat for various wildlife species, including migratory birds and fish. The marsh plays an essential role in the local ecosystem by filtering water and providing a natural buffer against flooding. The area is also significant for its agricultural activities, particularly farming and fishing. Suisun Marsh is part of the larger San Francisco Bay-Delta ecosystem, which is vital for maintaining biodiversity and supporting local economies. Conservation efforts are ongoing to protect this unique environment from urban development and pollution.