| Lat / long: | 42.3439, -90.39205 |
| Primary: | Zinc |
| Tertiary: | Lead |
| Ore: | Galena, Sphalerite |
| Gangue: | Calcite, Dolomite, Pyrite, Quartz |
| Operation type: | Unknown |
| Production size: | Yes |
| Development status: | Past Producer |
| Production years: | 1946- STILL IN OPERATION IN 1957. |
| First production started: | 1946 |
| Host rock: | Platteville Formation;Galena Dolomite |
| Host type: | Limestone,Dolomite |
| Structure: | Southeast Of Wisconsin Dome And On The Gentle West Limb Of Wisconsin Arch. To The South Is Illinois Basin And To The West And Southwest Is Forest City Basin. A Few Minles South O Fthe Zinc-Lead District Is Westward-Trending Savanna-Sabula Anticline. Regional Strike Is N 85 W And The Dip Is South., Bautsch-Black Jack Trough |
| Tectonic: | Stable Sedimentary Platform Having Later Mild Regional Deformation Sufficient To Produce Major And Minor Folds, Faults, Fracture Zones, And Joints. |
| Alteration processes: | Leaching, Silicification, Dolomitization |
| MRDS | W800294 |
| DEP | 10086376 |
| Reference | {Deposit:: HEYL, A.V., AGNEW, A.F., LYONS, E.J., AND BEHRE, C.H., JR., 1959, THE GEOLOGY OF THE UPPER MISSISSIPPI VALLEY ZINC-LEAD DISTRICT: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 309, 310 P.}{Deposit:: WILLMAN, H.B., REYNOLDS, R.R., AND HERBERT, PAUL, JR., 1946, GEOLOGICAL ASPECTS OF PROSPECTING AND AREAS FOR PROSPECTING IN THE ZINC-LEAD DISTRICT OF NORTHWESTERN ILLINOIS: ILLINOIS GEOLOGICAL SURVEY REPORT OF INVESTIGATIONS, NO. 116, 48 P.}{Production:: HEYL AND OTHERS, 1959.} |
| Reporter | Hedgman, Cheryl (Cannon, W.F.), Sutphin, David M., Mason Jr., G.T. |