The Chicago Area Waterway System (CAWS) consists of a combination of natural and manmade channels that form an interconnected navigable waterway of approximately 90-plus miles in the metropolitan Chicago area of northeastern Illinois. The CAWS serves t
Duncker, James J. jduncker@usgs.gov,Johnson, Kevin K. johnsonk@usgs.gov. Hydrology of and Current Monitoring Issues for the Chicago Area Waterway System, Northeastern Illinois. 2015-01-01.