Browse Critical Trends Assessment Program Regional Watershed Assessments by Subject "Conservation of natural resources --Illinois"

  • (Illinois Dept. of Natural Resources, 1997)
    Just as the Grand Prairie -- Illinois' namesake landscape -- was the heart of the continent's "Prairie Peninsula," so the Headwaters area of east central Illinois is the heart of the Grand Prairie. It is one of the ...


    application/pdfPDF (88Mb)