All maps of the Lower Illinois River Basin produced as part of this
study were made using ARC/INFO©, a product of the Environmental Systems
Research Institute, Inc. Any use of trade, product,
or firm names is for descriptive purposes only and does not imply endorsement
by the U.S. Government.
Personnel to contact about a specific subject are listed on the staff page.
U.S. Department of the Interior
U.S. Geological Survey
221 North Broadway, Urbana, IL 61801, USA
Last modified: 16:13 CST Thurs 11 May 2000