| Lat / long: | 42.44807, -90.239 |
| Primary: | Lead, Zinc |
| Ore: | Galena, Sphalerite |
| Gangue: | Calcite, Dolomite, Pyrite, Quartz |
| Operation type: | Unknown |
| Production size: | Yes |
| Development status: | Unknown |
| First production started: | 1905 |
| Last production ended: | 1915 |
| Host rock: | Stewartville Massive 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. |
| 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 | W800307 |
| DEP | 10086387 |
| Reference | 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 |
| Reporter | Mason Jr., G.T., Hedgman, Cheryl (Cannon, W.F.), Sutphin, David M. |