Copper Mines in Maine
41Total Sites
0Active
Copper Mining in Maine
Maine has 41 copper-related mine and mineral deposit locations recorded in federal databases. None are currently listed as active, but historical records document past production and geological occurrences. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.
By County
| County | Sites |
|---|---|
| Hancock County | 29 |
| Washington County | 4 |
| Aroostook County | 2 |
| Knox County | 2 |
| Oxford County | 1 |
| Penobscot County | 1 |
| Piscataquis County | 1 |
| Somerset County | 1 |
Copper Mines
| Mine | County | Type | Status |
|---|---|---|---|
| Alexander Area Prospect | Washington | Prospect | |
| Appleton Mine | Knox | Occurrence | |
| Azure Mine | Hancock | Underground | Prospect |
| Bfd | Aroostook | Occurrence | |
| Blodgett Prospect | Hancock | Occurrence | |
| Blue Hill Central | Hancock | Past Producer | |
| Blue Hill Jt. Venture Concentrator | Hancock | Processing Plant | Plant |
| Campbell Prospect | Hancock | Prospect | |
| Candage Copper Mine and Prospect Pit | Hancock | Occurrence | |
| Carter Prospect | Hancock | Prospect | |
| Chase Stream (Squirtgun) | Somerset | Occurrence | |
| Chester Mine | Hancock | Prospect | |
| City of Boston | Hancock | Past Producer | |
| Clark Mine | Hancock | Underground | Past Producer |
| Copper Mine | Hancock | Prospect | |
| Copperopolis Mine | Hancock | Underground | Occurrence |
| Cross Island Prospect | Washington | Prospect | |
| Donlon Prospect | Hancock | Past Producer | |
| Douglas Copper Mine | Hancock | Past Producer | |
| Highland Prospect | Hancock | Prospect | |
| Highland Prospect | Hancock | Occurrence | |
| Kenney Grindle Mine | Hancock | Prospect | |
| Lymburner Prospect | Hancock | Occurrence | |
| Mammoth Mine | Hancock | Past Producer | |
| Marion & Gardner Prospects | Washington | Past Producer | |
| Owen Mine | Hancock | Past Producer | |
| Perkins Prospect | Hancock | Occurrence | |
| Roland Cushee Farm Prospect | Knox | Occurrence | |
| Rump Pond Copper Prospect | Oxford | Occurrence | |
| Shepardson Prospect | Hancock | Past Producer | |
| Silver Hill Mine | Penobscot | Past Producer | |
| Swazey Copper Mine | Hancock | Past Producer | |
| Tapley Mine (1880-1907?) | Hancock | Unknown | |
| Trio Mine | Hancock | Past Producer | |
| Unnamed Cu Occurrence | Aroostook | Occurrence | |
| Unnamed Mine | Hancock | Prospect | |
| Unnamed Mine | Hancock | Prospect | |
| Unnamed Prospect | Washington | Occurrence | |
| Unnamed Prospect | Hancock | Occurrence | |
| Weil Freddie Mine (1880) | Hancock | Past Producer | |
| Weston Farm Prospect | Piscataquis | Prospect |