Illinois River Bluffs area assessment / Illinois Department of Natural Resources, Office of Scientific Research and Analysis, [and the] State Geological Survey Division.
Critical Trends Assessment Program
Illinois. Dept. of Natural Resources. Office of Scientific Research and Analysis.
Critical Trends Assessment Project.
Illinois State Geological Survey.
Illinois. Dept. of Natural Resources.
Springfield, Ill. :Illinois Dept. of Natural Resources,1998-
"The Illinois River Bluffs Area Assessment examines an area in west-central Illinois that includes parts of the upper and lower Illinois River watersheds from the vicinity of Hennepin southward to Eas
"Critical Trends Assessment Program."--Cover.
Contents: v. 1. Geology -- v. 2. Water resources -- v. 3. Living resources -- v. 4. Socio-economic profile. Environmental quality. Archaeological resources -- v. 5. Early accounts of the ecology of the Illinois
Illinois River Watershed
Illinois River Watershed (Ill.)
Natural resources conservation areas
Natural resources surveys
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