Rock River area assessment
By: Illinois Department of Natural Resources, Office of Scientific Research and Analysis, Natural History Survey Division, in conjunction with State Geological Survey Division
Contributors: Illinois. Natural History Survey Division; Illinois State Geological Survey
Publisher: Illinois Dept. of Natural Resources
Published: 1996
Place of publication: Springfield, IL
Language: eng
Other titles: Critical Trends Assessment Program; Project of the critical trends assessment program
Notes: "November 1996-v.1."

"Critical Trends Assessment Program."--Cover.

Includes bibliographical references-v.l p.112-122.
Table of contents: title: v.1. Natural resources; title: v. 2. pt. I. Socio-economic profile. pt. II. Early account of the ecology of the Rock River Hill country.