Mandalay National Wildlife Refuge, established in 1996, is located in Terrebonne Parish in southeast Louisiana. The 4, 212 acre refuge is composed of freshwater marsh and cypress-tupelo swamp.
The project encompasses 595, 000 acres of the largest contiguous tract of bottomland hardwoods in the United States. The Atchafalaya Basin is a scenic semi-wilderness area of hardwood forests, cypress stands, marshes and bayous.