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The Illinois River, as seen from Starved Rock State Park. The dam (upper-left center) is part of the infrastructure of the Illinois Waterway. From 1905 to 1915, more freshwater fish were harvested from the Illinois River than from any other river in the United States except for the Columbia River.
This section of the river lies in the central Illinois River Valley and is administered by the state of Illinois as the Marshall State Fish and Wildlife Area. The valley was formed during the Wisconsin glaciation , which is responsible for the cobbles and boulders left in the area.
The Chautauqua National Wildlife Refuge is located on the Illinois River in Mason County northeast of Havana, Illinois. It is managed by the U.S. Fish and Wildlife Service as one of the four Illinois River National Wildlife and Fish Refuges. The refuge consists of 4,388 acres (17.76 km 2) of Illinois River bottomland, nearly all of it wetland.
The Ray Norbut State Fish and Wildlife Area is a 1,140-acre (460 ha) state park located near Griggsville in Pike County, Illinois. It borders on the Illinois River and is primarily made of steeply sloped bluffland that is part of the river's valley. Heavily wooded, this region is managed for whitetail deer hunting. The Ray Norbut complex also ...
The Illinois Department of Natural Resources partnered with the U.S. Army Corps of Engineers on a reclamation project that was completed in May 2003. The project optimized the habitat for wildlife (fish and waterfowl), improved flood control, and increased food and cover for wildlife.
The Meredosia National Wildlife Refuge is a 5,255-acre (21.27 km 2) national wildlife refuge located along the Illinois River in Cass County and Morgan County in the U.S. state of Illinois. The refuge is adjacent to Meredosia, Illinois, but is managed by the U.S. Fish and Wildlife Service from a headquarters located in Havana, Illinois. [1]
The Mackinaw River State Fish and Wildlife Area is a 1,448-acre (586 ha) state park along the river in Tazewell County. Operated by the Illinois Department of Natural Resources, the area provides opportunities for fishing, canoeing, hiking, hunting and general interaction with nature. [8]
The water of the lake, fed by abundant local springs, is cooler than most Illinois River lakes. In the 1980s, both north and south lakes were rehabilitated to remove an undesirable carp and gizzard shad population. [3] [7] This rehabilition improved water clarity, helped aquatic plants to grow, and improved the desirable fish population. [3]