- Located in the upper end of the lower Mississippi river valley, Mingo NWR is the only large remnant of bottomland hardwoods remaining out of an original 2 1/2 million acres in the Missouri bootheel.
A major migration and wintering area for migratory waterfowl, populations of 125,000 mallards and 75,000 Canada geese have been recorded. Bald eagles have been successively nesting on the refuge since 1985.
The refuge contains approximately 14,000 acres of bottomland hardwoods, 1,000 acres of upland hardwoods, 1,275 acres of cropland and moist soil units, 700 acres of grasslands, and 4,700 acres of marsh and water.
There are 7 natural areas on the refuge and 99 identified archaeological sites. In 1976, 7,730 acres were designated as a wilderness area. The Mingo Job Corps Civilian Center is located on the southeast corner of the refuge.