geologic excursion to fluorspar mines in Hardin and Pope Counties, Illinois

Geologic excursion to fluorspar mines in Hardin and Pope Counties, Illinois

Illinois-Kentucky mining district and adjacent Upper Mississippi Embayment

5/5
Format
30 empapula
Esoose kufulumizibwa
1973
Abafulumya
Illinois State Geological Survey
Essomo
Fluorspar·Illinois·Hardin county·Fluorspar·Illinois·Pope county·Geology·Illinois·Hardin county·Geology·Illinois·Pope county
Olulimi
English

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