Browse Critical Trends Assessment Program Regional Watershed Assessments by Title

  • Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division (Illinois Dept. of Natural Resources, 1999)
    The Thorn Creek Assessment Area is an approximately 104.26-mile2 (66,725 acre) area that includes portions of southern Cook County and northeastern Will County. This assessment area consists of the entire Thorn Creek basin ...

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  • Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division (Illinois Dept. of Natural Resources, 1998)
    The Upper Des Plaines Area Assessment covers an area of approximately 346 mile2 (221,637 acres) spanning central Lake County, north-central Cook County, and the northeastern portion of Du Page County. The Des Plaines River ...

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  • Illinois Deptartment of Natural Resources Office of Realty and Environmental Planning (Illinois Dept. of Natural Resources, 1998)
    Take a canoe trip down the upper Des Plaines River from just north of the Wisconsin border south to the Cook County town of Lyons, and you can see the history of urbanization in Illinois laid out like a diorama. As the ...

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  • Illinois Department of Natural Resources, Office of Scientific Research; Illinois Department of Natural Resources, Illinois State Water Survey (Illinois Dept. of Natural Resources, 2001)
    The Upper Rock River Assessment Area is defined by that portion of the Rock River watershed downstream from the Illinois-Wisconsin state line to the Rock River's confluence with Pine Creek near Grand Detour. The area falls ...

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  • (Illinois Dept. of Natural Resources, 1999)
    The Sangamon River basin drains 5,419 square miles and forms the largest watershed of any of the tributaries of the Illinois River. The main stem of the Sangamon River flows more than 240 miles. This assessment report ...

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  • Illinois Deptartment of Natural Resources (Illinois Dept. of Natural Resources, 2000)
    The Vermilion River Assessment Area is located in north central Illinois and includes parts of seven counties - Ford, Iroquois, LaSalle, Livingston, Marshall, McLean, and Woodford. It encompasses 1,331 square miles and ...

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  • Illinois Department of Natural Resources (Illinois Dept. of Natural Resources, 1999)
    The area discussed in this assessment coincides with the boundaries of the Illinois portion of the Vermilion River basin as determined by the Illinois Environmental Protection Agency. This area, covering approximately 1,485 ...

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  • Lundgren,Jonathan; Post, Susan L. (Illinois Dept. of Natural Resources, 2004-03)

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  • Post, Susan L. (Illinois Dept. of Natural Resources, 2000)

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