| Lat / long: | 37.57697, -88.40424 |
| Tertiary: | Fluorine-Fluorite |
| Operation type: | Underground |
| Development status: | Past Producer |
| First production started: | 1942 |
| MAS | 170690114 |
| DEP | 10266523 |
| Reference | {Deposit:: BURMEISTER H L BU MINES R I 4856 1952}{Reserve-Resource:: BURMEISTER, H. L. KNOX ANS YINGLING FLOURITE MINES, HARDIN}{Reserve-Resource:: COUNTY, ILL. U. S. BUMINES RI 4856, 1952, 8 PP.} |
| Reporter | Eastern Field Operations Center (EFOC) |