University of Illinois Urbana-Champaign

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Showing 5281–5310 of 7,015 items
Thumbnail for Watershed Monitoring and Land Use Evaluation for the Lake Decatur Watershed
Watershed Monitoring and Land Use Evaluation for the Lake Decatur Watershed
Demissie, Misganaw; Keefer, Laura; Borah, Deva; Knapp, Vern; Shaw, Susan; Nichols, Ken; Mayer, Dan

Thumbnail for Upper Sangamon River area assessment
Upper Sangamon River area assessment
Submitter: Steven Mccauley

Thumbnail for Petroleum industry in Illinois, 1976. Part I. Oil and gas developments
Petroleum industry in Illinois, 1976. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.