The Kinkaid area : an inventory of the region's resources /

"June 2002."

Thorn Creek : an inventory of the region's resources.

"A project of the Critical Trends Assessment Program."

The Spoon River basin : an inventory of the region's resources 1998 /

"A product of the Critical Trends Assessment Program (CTAP) and the Ecosystems Program of the Illinois Department of Natural Resources (IDNR)--P. [2] of cover.

The upper Des Plaines River basin : an inventory of the region's resources /

"A project of the Critical Trends Assessment Program (CTAP and the Ecosystems Program of the Illinois Department of Natural Resources (IDNR)"--P. [2] of cover.

The Sugar-Pecatonica Rivers basin : an inventory of the region's resources /

"A project of the Critical Trends Assessment Program."

The Sinkhole Plain : an inventory of the region's resources /

"A project of the Critical Trends Assessment Program."

The Vermilion River basin : an inventory of the region's resources.

"A project of the Critical Trends Assessment Program."