Coon Creek (Kishwaukee River)

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Coon Creek is a 28.1-mile-long (45.2 km)[1] tributary of the Kishwaukee River in northern Illinois.[2]


Coon Creek flows north from DeKalb County, Illinois into McHenry County.[3] The stream continues flowing northwest from the DeKalb County-McHenry County line until it empties into the Kishwaukee River in Boone County.[4] In terms of square miles drained, Coon Creek is the second-largest tributary of the Kishwaukee River, behind only the South Branch Kishwaukee River.[5]


The DeKalb County and Boone-McHenry County portions of Coon Creek are different in character. While 72% of the watershed, Coon Creek and its tributaries, has had its stream beds channelized (ditched and straightened) only 42% of the Coon's main stem has been channelized.[4] In McHenry County, Coon Creek still features many of its natural features, such as pools and riffles.[4] In DeKalb County, further away from the Kishwaukee, the stream has been entirely channelized, only 6% of the Coon's tributaries in this area have not been channelized.[3] This portion of Coon Creek retains very few of the natural instream characteristics such as pools or riffles.[3]


The Coon Creek watershed (technically a subwatershed) is home to at least 34 different species of fish. Some of the species found in Coon Creek include bluegill, black crappie, smallmouth bass, largemouth bass and northern pike.[4] The blacknose shiner (Notropis heteropis) is an example of an endangered fish found in the creek.[4] The creek is also home to two species of reptile, the federally threatened Blanding's turtle (Emydoidea blandingii) and the snapping turtle.[4]


Coon Creek has several tributaries. Among them are Harmony Creek, Hampshire Creek, and Burlington Creek.[4]


  1. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed May 19, 2011
  2. ^ Kishwaukee River Watershed, Watersheds of Illinois - 1996 Fact Sheets, Illinois Environmental Protection Agency, 1996, accessed January 22, 2011.
  3. ^ a b c Upper Coon Creek Subwatershed Plan, Kishwaukee River Ecosystem Partnership, May 2005, accessed January 22, 2011.
  4. ^ a b c d e f g Lower Coon Creek Subwatershed Plan, Kishwaukee River Ecosystem Partnership, May 2005, accessed January 22, 2011.
  5. ^ Piscasaw Creek - Subwatershed plan, Kishwaukee River Ecosystem Partnership, May 2005, p. 3, 8 - 10, accessed January 23, 2011.