Illinois Forests.

"Funds for this publication were provided by the Illinois Forestry Development Council, Illinois Department of Natural Resources, Division of Forest Resources, and by the Dept. of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign"--T.p. verso.

Illinois Streams Information System : encoding manual : river mile index reference maps /

Cover title.

Illinois Streams Information System : project description /

"Working paper no. 1."

Middle Mississippian carbonates and siliciclastics in Western Illinois /

Mode of access: Internet.

Mine subsidence and related damage in O'Fallon, Illinois : phase II report /

1 folded leaf of plates in pocket.