The GNIS database information dates from 1980 and does not reflect recent changes made to the mouth location during improvements at Chicago Executive Airport. The source location may also have shifted due to housing development in the area. The coordinates used in the information box are from Google Earth.
^U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National MapArchived 2012-03-29 at the Wayback Machine, accessed May 13, 2011