Cache River (Illinois)

Cache River (Illinois)

The Cache River is a 92-mile-long (148 km) waterway in southernmost Illinois, in a region sometimes called Little Egypt. The basin spans 737 square miles (1,910 km2) and six counties: Alexander, Johnson, Massac, Pope, Pulaski and Union. Located at the convergence of four major physiographic regions, the river is part of the largest complex of wetlands in Illinois. The Cache River Wetlands — America's northernmost cypress/tupelo swamp — harbors 91 percent of the state’s high quality swamp and wetland communities. It provides habitat for more than 100 threatened and endangered species in Illinois. In 1996, the Cache was designated a Wetland of International Importance by the Ramsar Convention.

A significant portion of the Cache River Wetlands are protected by U.S. Fish and Wildlife Service and Illinois Department of Natural Resources. Cypress Creek National Wildlife Refuge, established in 1990, covers 15,000 acres (61 km2) of aquatic and riparian habitat, and is eventually planned to expand to 35,500 acres (144 km2). The Illinois Department of Natural Resources' Cache River State Natural Area protects another 14,489 acres (58.63 km2). And local landowners, through Wetlands Reserve Program easements with Natural Resources Conservation Service, protect an additional 13,500 acres (55 km2) of restored wetlands. Also through NRCS, landowners are using a variety of conservation practices, such as conservation tillage, grassed waterways and reforestation; many of these practices are through NRCS’ Environmental Quality Incentives and Wildlife Habitat Programs. In all, more than 45,000 acres (180 km2) of private lands are using some sort of NRCS conservation program in the Cache River Watershed.

The Lower Cache River, a habitat that encompasses much of these landholdings, has been listed as a U.S. National Natural Landmark. The Heron Pond – Little Black Slough Nature Preserve, another National Natural Landmark, is located within the upper stretch of the Cache, upstream from the Post Creek Cutoff.