| Lat / long: | 47.41972, -88.10643 |
| Primary: | Copper |
| Ore: | Copper |
| Orebody form: | IRREGULAR |
| Operation type: | Underground |
| Deposit type: | Veins/Fissures |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1847 |
| Last production ended: | 1886 |
| Host rock: | Portage Lake Volcanics |
| Host type: | Basalt |
| Structure: | Syncline, Four veins worked south of the Greenstone flow and under the Allouez conglo |
| MRDS | W060068 |
| DEP | 10082630 |
| Reference | {Deposit:: BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF. PAPER NO. 144, 238 PP.}{Deposit:: CORNWALL, H.R., 1954, BEDROCK GEOLOGY OF THE DELAWARE QUADRANGLE, MICHIGAN: USGS MAP GQ-51, SCALE 1:24000}{Deposit:: JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, KEWEENAW COUNTY, P. 104-106, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.}{Production:: BUTLER AND BURBANK (1929)} |
| Reporter | Nicholson, Suzanne, Sutphin, D.M., Mason Jr., G.T., Anderson, Arlene (M. Gere) |