St. Catherine Creek National Wildlife Refuge was established in 1990. Management of the refuge aims to conserve the integrity of a dynamic bottomland hardwood forest ecosystem in the Lower Mississippi River Valley. The 24,589-acre refuge located in southwest Mississippi contains a diverse array of habitat types consisting of bottomland hardwoods, cypress swamps, upland hardwoods on the loess bluffs, small cliffs made from a specific type of wind-blown sediment. The Refuge also has moist soil impoundments, reforested areas, fallow fields and accreted land. Flooding from the Mississippi River occurs from winter through early summer preserving a naturally functioning bottomland hardwood system and a bountiful diversity of fish, wildlife and plant species.