"DuPage River Flooding". DuPage River Storm Water-Concerned Group. 2 June 2010. Archived from the original on 30 July 2010. Retrieved 10 December 2021.
nationalmap.gov
viewer.nationalmap.gov
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
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
"DuPage River Flooding". DuPage River Storm Water-Concerned Group. 2 June 2010. Archived from the original on 30 July 2010. Retrieved 10 December 2021.