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Watersheds of Illinois is a list of basins or catchment areas into which the State of Illinois can be divided based on the place to which water flows.. At the simplest level, in pre-settlement times, Illinois had two watersheds: the Mississippi River and Lake Michigan, with almost the entire State draining to the Mississippi, except for a small area within a few miles of the Lake.
The Illinois Waterway system consists of 336 miles (541 km) of navigable water from the mouth of the Calumet River at Chicago to the mouth of the Illinois River at Grafton, Illinois. Based primarily on the Illinois River , it is a system of rivers, lakes, and canals that provide a commercial shipping connection from the Great Lakes to the Gulf ...
The U.S. Army Corps of Engineers and the Illinois Water Survey are studying ways to halt degradation of the lake and the USDA Forest Service is helping with a study of public interests in recreation at Wolf Lake. [12] The Wolf Lake water level determines the drainage to Lake Michigan because the connecting Calumet River flows southward during ...
This is a list of lakes and reservoirs in the U.S. state of Illinois. The lakes are ordered by their unique names, (i.e. Lake Smith or Smith Lake would both be listed under "S"). Swimming, fishing, and/or boating are permitted in some of these lakes, but not all.
The Illinois side includes Henry County, Mercer County, and Rock Island County. [4] In extreme northwestern Illinois the Driftless Zone, a region of unglaciated and therefore higher and more rugged topography, occupies a small part of the state. Charles Mound, located in this region, is the state's highest elevation above sea level.
Loon Lake's maximum depth is 20 feet (6.1 m) and it has an average depth of 11.8 feet (3.6 m). [6] Loon Lake, sometimes known as Silver Spring Lake, was constructed in 1960 when a lowland area was excavated. The lake's water level is maintained through a small 20-acre (8.1 ha) watershed and groundwater seepage.
Members of the Local Environmental Action Demanded (LEAD) Agency, an area advocacy group, worry that raising the water level will make flooding worse at the lake's upstream rivers. Over the years ...
The EPA ecoregion classification system has four levels, but only Levels I, III, and IV are shown on this list. Level I divides North America into 15 broad ecoregions (or biomes ). Illinois is almost entirely within the Eastern Temperate Forest environment Level I region, although very small sections in its extreme west are in the Great Plains ...