The Mobile–Tensaw River Delta, stretching from the junction of the Alabama and Tombigbee rivers to Mobile Bay, is Alabama’s largest river delta and wetland and the second-largest delta in the contiguous United States. Its open water, marshes, swamps, forests, and grass beds make it one of the most biologically rich regions in Alabama and the nation. Formed over millions of years and reshaped after the last major ice age, it has been inhabited for at least 5,000 years. The delta was home to Native peoples, drew Spanish and French visitors, and later figured in events from the Fort Mims attack to the Clotilda’s arrival and the battle of Blakeley.