University of Illinois Urbana-Champaign

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Showing 541–570 of 4,108 items
Thumbnail for Availability of the Herrin Coal for mining in Illinois : map summary of Illinois minerals 120
Availability of the Herrin Coal for mining in Illinois : map summary of Illinois minerals 120
Treworgy, Colin G.; Korose, Christopher P.; Wiscombe, Christine L.

Thumbnail for Subsidence investigations over a high-extraction retreat mine in Williamson County, Illinois: final report
Subsidence investigations over a high-extraction retreat mine in Williamson County, Illinois: final report
Mehnert, B.B.; Van Roosendaal, D.J.; Bauer, R.A.; Barkely, D.; Gefell, E.

Thumbnail for Illinois River Natural Resources Bibliography
Illinois River Natural Resources Bibliography
Pegg, Mark A.; Havera, Stephen P.