| Lat / long: | 47.4, -88.01559 |
| Primary: | Copper |
| Ore: | Chalcocite |
| Orebody form: | IRREGULAR |
| Operation type: | Unknown |
| Deposit type: | Vein |
| Production size: | Small |
| Development status: | Prospect |
| First production started: | 1846 |
| Last production ended: | 1866 |
| Host rock: | Portage Lake Volcanics |
| Host type: | Basalt,Andesite |
| Structure: | Mineralization in lowermost Portage Lake volcanics |
| MRDS | W060075 |
| DEP | 10082637 |
| Reference | {Deposit:: MICHIGAN COPPER COMPANY LTD, 19---, MICHIGAN COPPER SULFIDE PROJECT: KEWEENAW PENINSULA: COMPANY REPORT, 21 PP.}{Deposit:: JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, KEWEENAW COUNTY, SITE ID 420048, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.}{Reserve-Resource:: MICHIGAN COPPER COMPANY LTD REPORT} |
| Reporter | Nicholson, Suzanne, Sutphin, D.M., Mason Jr., G.T., Anderson, Arlene (M. Gere) |