Crab Orchard National Wildlife Refuge

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Crab Orchard National Wildlife Refuge, Illinois, USA
IUCN Category IV (Habitat/Species Management Area)
Map of the U.S. state of Illinois showing the location of Crab Orchard National Wildlife Refuge
Location	Williamson County, Illinois, USA
Nearest city	Marion, Illinois
Coordinates	37°42′00″N 89°03′33″W / 37.7, -89.05917
Area	43,890 acres (177.62 km²)
Established	1947
Visitors	1,000,000 (in )
Governing body	U.S. Fish and Wildlife Service

Crab Orchard National Wildlife Refuge is a 43,890 acre (180 km²) National Wildlife Refuge in Williamson County, Illinois in the United States, whose land and water contain a wide diversity of flora and fauna. It centers on Crab Orchard Lake. Major habitat types on the refuge include hardwood forest, agricultural land, grazing units, brushland, wetlands, and lakes. Other major bodies of water on the refuge are Devil's Kitchen Lake and Little Grassy Lake.

The refuge provides significant resting areas for migratory birds utilizing the Mississippi Flyway. Wintering numbers of Canada Geese can peak at 200,000. A total of 700 plant species, 245 bird species, 33 mammal species, 63 fish species, and 44 reptile and amphibian species have been documented on the refuge.

The western 24,000 acres (97 km²) of the refuge provide a wide range of recreational opportunities and also include a 4,050 acre (16 km²) wilderness area. The eastern portion, 20,000 acres (81 km²), is a wildlife sanctuary, and public use is limited.

Annual visitation is approximately 1,000,000 visitors. Industrial activities on the refuge range from manufacturing and storage facilities to administrative offices. Many buildings now housing industries were used in the manufacturing of explosives during World War II, and they are still used for military ordnance production today. The concrete igloos built for munition storage are now leased to private industry for storage of many types of products.

Crab Orchard National Wildlife Refuge is managed with four broad objectives: wildlife management, agriculture, recreation, and industry. The primary wildlife management objective is to satisfy the food and resting needs of wintering Canada geese and other wildlife. This objective is coordinated with the agriculture objective through cooperative farming and permittee grazing programs.