This land cover map of Champaign, Illinois was created by Illinois Natural History Survey Geographic Information System from satellite imagery. This map is part of the Critical Trends Assessment Project (CTAP) authored by Donald Luman, Illinois State Geological Survey, Mark Joselyn, Illinois Natural History Survey, and Liane Suloway, Illinois Natural History Survey.
It can be found at the Illinois Department of Natural Resources web site: http://www.inhs.uiuc.edu/igis/illinois/counties/champaig.htm As part of their web site http://dnr.state.il.us/cpyrited.htm, the Illinois Department of Natural Resources states that: ``The Illinois Department of Natural Resources will not knowingly post copyrighted material on the Internet without permission from the copyright holder.''