Comprehensive plan for the Illinois Nature Preserves System.
Contributors: Illinois Nature Preserves Commission.; Illinois. Framework Advisory Committee.; Illinois Archeological Survey.; Illinois. Dept. of Conservation.
Publisher: Illinois Nature Preserves Commission
Published: 1972
Place of publication: Rockford, Ill
Language: eng
Subjects: Nature conservation -- Illinois; Wilderness areas -- Illinois
Other titles: Guidelines; Natural divisions of Illinois
Table of contents: title: pt. 1. Guidelines; title: pt. 2. The Natural divisions of Illinois.