The Tijuana River National Estuarine Research Reserve is located in southern California, near the border with Mexico. It encompasses a diverse ecosystem that includes wetlands, salt marshes, and coastal habitats. The reserve plays a crucial role in protecting wildlife and providing a habitat for various species, including migratory birds. Established in 1980, the reserve is managed by the National Oceanic and Atmospheric Administration (NOAA) and the California Department of Fish and Wildlife. It serves as a site for research, education, and conservation efforts, helping to improve understanding of estuarine environments and their importance to the ecosystem.