| Lat / long: | 42.29807, -90.23678 |
| Primary: | Lead |
| Tertiary: | Zinc |
| Ore: | Galena, Sphalerite |
| Gangue: | Calcite, Dolomite, Pyrite, Quartz |
| Discovery year: | 1901 |
| Operation type: | Unknown |
| Production size: | Yes |
| Development status: | Past Producer |
| First production started: | 1901 |
| Last production ended: | 1907 |
| Host rock: | Prosser Cherty Member |
| Host type: | 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., N 83 E Trending Crevice |
| 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 | W800208 |
| DEP | 10106500 |
| 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:: BAIN, H.F., 1905, ZINC AND LEAD DEPOSITS OF NORTHWESTERN ILLINOIS: U.S. GEOLOGICAL SURVEY BULLETIN 246, 56 P.}{Deposit:: COX, G.H., 1914, LEAD AND ZINC DEPOSITS OF NORTHWESTERN ILLINOIS: ILLINOIS GEOLOGICAL SURVEY BULLETIN 21, 120 P.}{Production:: COX, 1914, P. 59} |
| Reporter | Hedgman, Cheryl (Cannon, W.F.), Sutphin, David M., Mason Jr., G.T. |