The Lower Rock River watershed includes parts of Boone, Carroll, Henry, Lee, Mercer, Ogle, Rock Island, Stephenson, Whiteside, and Winnebago Counties in Illinois.
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Download MP4 (96 MB) Meeting Presentation (PDF) Watch Video (hosted on Illinois Media Space) Download MP4 (531 MB) Download MP4 (1,212 MB) Download MP4 (148 MB) Watch Video (hosted on Illinois Media Space) Download MP4 (432 MB) Download MP4 (125 MB) Download MP4 (135 MB) Meeting Presentation (PDF) Website List Handout (PDF)The information below is for historical reference. The Discovery process for this watershed is complete and the data is considered archival.
Discovery Report for Lower Rock Watershed in Winnebago County (PDF) Discovery Map for Lower Rock Watershed in Winnebago County (PDF) Lower Rock Watershed in Winnebago County Discovery Database (ZIP) Discovery Map Data Layers of Rock River Watershed in Winnebago County (PDF)The Upper Rock River basin is primarily located in Wisconsin while the Lower Rock is located entirely within Illinois. The length of the Rock River in Illinois is about 163 miles. The Rock River drains 10,915 sq. mi. in southeastern Wisconsin and northwestern Illinois; about 5317 sq. mi. are in IL (Knapp and Russell, 2004).
Illinois counties with ongoing data development or mapping:
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