University of Illinois Urbana-Champaign

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Showing 121–150 of 1,854 items
Thumbnail for Preliminary report on organization and method of investigations.
Preliminary report on organization and method of investigations.
Illinois. Coal mining investigations. (Co-operative agreement.)

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

Thumbnail for Potential surface water reservoirs in South-Central Illinois
Potential surface water reservoirs in South-Central Illinois
Dawes, Julius Henry; Terstriep, Michael Lee