Crab Orchard National Wildlife Refuge
Encyclopedia
Crab Orchard National Wildlife Refuge is a 43,890 acre (180 km²) National Wildlife Refuge
National Wildlife Refuge
National Wildlife Refuge is a designation for certain protected areas of the United States managed by the United States Fish and Wildlife Service. The National Wildlife Refuge System is the world's premiere system of public lands and waters set aside to conserve America's fish, wildlife and plants...

 primarily in southwestern Williamson County
Williamson County, Illinois
-2010:Whereas according to the 2010 U.S. Census Bureau:*92.7% White*3.8% Black*0.4% Native American*0.8% Asian*0.0% Native Hawaiian or Pacific Islander*1.7% Two or more races*0.4% Other races*2.0% Hispanic or Latino -2000:...

, but with small extensions into adjacent eastern Jackson
Jackson County, Illinois
Jackson County, incorporated January 10, 1816, is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 60,218, which is an increase of 1.0% from 59,612 in 2000...

 and northeastern Union counties of southern Illinois
Illinois
Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

, in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. Its land and water contain a wide diversity of flora and fauna. It centers on Crab Orchard Lake
Crab Orchard Lake
Crab Orchard Lake is a 6,965-acre reservoir in Williamson County, Illinois. It is the centerpiece of the Crab Orchard National Wildlife Refuge...

. 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
Devils Kitchen Lake
Devil's Kitchen Lake is an 810-acre reservoir in southern Illinois, created by the damming of Grassy Creek, a tributary of Crab Orchard Lake and the Big Muddy River. Most of the lake is located in Williamson County, southwest of Marion, Illinois. The lake is accessible from Interstate 57. Two...

 and Little Grassy Lake
Little Grassy Lake
Little Grassy Lake is a 1,200-acre reservoir in southern Illinois, created by the damming of Little Grassy Creek, a tributary of Crab Orchard Lake and the Big Muddy River. Most of the lake is located in Williamson County, southeast of Carbondale, Illinois. The lake is accessible from Giant City...

.

Description

The refuge provides significant resting areas for migratory birds utilizing the Mississippi
Mississippi
Mississippi is a U.S. state located in the Southern United States. Jackson is the state capital and largest city. The name of the state derives from the Mississippi River, which flows along its western boundary, whose name comes from the Ojibwe word misi-ziibi...

 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.

Crab Orchard Wilderness

The Crab Orchard Wilderness
Crab Orchard Wilderness
The Crab Orchard Wilderness is a parcel of land listed as a Wilderness Area of the United States. It is located within the Crab Orchard National Wildlife Refuge in Williamson County, Illinois.-Second-growth wilderness:...

, a federally listed 4050 acres (16.4 km²) U.S. wilderness area, occupies the southernmost strip of the National Wildlife Refuge.
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