Fish and Wildlife Service, Arkansas.
Overflow National Wildlife Refuge (NWR) is a wetland complex within the watershed of Overflow Creek, which flows south along the length of the refuge. On the western boundary, there are approximately 100 acres of upland forests on a narrow strip along the escarpment that separates the Mississippi Alluvial Valley from the Gulf Coastal Plain. The majority of the refuge is bottomland hardwood forests consisting primarily of willow and overcup oaks. Willow oaks produce small acorns that are an excellent food source for the mallards and wood ducks that make their winter home here.
Overflow National Wildlife Refuge is located 15 miles southeast of Hamburg, Arkansas, adjacent to State Highway 8, or four miles northwest of Parkdale, Arkansas on State Highway 8. Signs along the way invite you to visit the Office/Contact Station before entering the refuge.