Lisa A. McCauley and David G. Jenkins. 2005. GIS-based estimates of former and current depressional wetlands in an agricultural landscape. Ecological Applications 15:1199–1208.

Appendix A (Fig. A1). A map showing the location of Champaign County, Illinois, USA.

FIG. A1. Illinois, within the United States, and Champaign County, within Illinois. Champaign County is 2558 square kilometers.