| Lat / long: | 47.43472, -88.19726 |
| Primary: | Copper |
| Ore: | Copper |
| Operation type: | Surface |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1845 |
| Last production ended: | 1850 |
| Host rock: | Portage Lake Volcanics |
| Host type: | Basalt |
| Structure: | Ashbed amygdaloid |
| MRDS | W060069 |
| DEP | 10082631 |
| 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., AND WRIGHT, J.C., 1954, BEDROCK GEOLOGY OF THE EAGLE HARBOR QUADRANGLE, MICHIGAN; USGS MAP GQ-36, SCALE 1: 24000}{Production:: BUTLER AND BURBANK, 1929; CORNWALL AND WRIGHT, 1954} |
| Reporter | Nicholson, Suzanne, Sutphin, D.M., Mason Jr., G.T. |