Mica Mines in New Hampshire
114Total Sites
1Active
Mica Mining in New Hampshire
New Hampshire has 114 mica-related mine and mineral deposit locations recorded in federal databases. Of these, 1 are currently active operations. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.
By County
| County | Sites |
|---|---|
| Grafton County | 90 |
| Sullivan County | 9 |
| Cheshire County | 8 |
| Merrimack County | 3 |
| Rockingham County | 2 |
| Coos County | 1 |
| Strafford County | 1 |
Mica Mines
| Mine | County | Type | Status |
|---|---|---|---|
| United Tech./ Newmarket, Nh. | Rockingham | Processing Plant | Producer |
| A. Rousseau Property | Grafton | Prospect | |
| Aaron Ledge Mica Prospects | Sullivan | Surface | Prospect |
| African Mica Mine | Grafton | Surface | Prospect |
| Alger No. 1 Mine | Grafton | Surface | Past Producer |
| Ashley Mica Prospect | Grafton | Surface | Prospect |
| Atwood Mica Mine | Grafton | Surface-Underground | Past Producer |
| Beauregard Mica Mine | Cheshire | Surface | Prospect |
| Belden Mica Mine | Grafton | Surface-Underground | Prospect |
| Blake Mine | Cheshire | Surface | Past Producer |
| Brown Lot Mica Mine | Grafton | Surface | Prospect |
| Buffum Mica Mine | Grafton | Surface | Prospect |
| Carpenter Mica Mine | Grafton | Surface | Past Producer |
| Carter Farm Mica Prospect | Grafton | Prospect | |
| Charles Davis Mica Mine | Grafton | Surface | Past Producer |
| Charles Ford Prospect | Grafton | Prospect | |
| Clement Prospect | Grafton | Prospect | |
| Colby Mica Mine | Sullivan | Surface | Prospect |
| Coleman Mica Mine | Grafton | Surface | Prospect |
| Concord Mica Co/ Penacook, Nh | Merrimack | Processing Plant | Unknown |
| Crystal Mica Mines | Grafton | Surface-Underground | Prospect |
| Danbury Mica Mine | Merrimack | Surface | Past Producer |
| Demott Mica Mine | Grafton | Surface | Prospect |
| E. E. Smith Mica Mines | Grafton | Surface-Underground | Past Producer |
| Eight-Ball Mica Prospect | Grafton | Prospect | |
| Fairburn Mica Prospect | Grafton | Surface | Prospect |
| Fischer Mica Prospect | Coos | Prospect | |
| Fletcher Mine | Grafton | Surface | Prospect |
| G.f. Smith & Chandler Mills Mine | Sullivan | Surface | Prospect |
| Globe Mica Mine | Sullivan | Surface | Past Producer |
| Gove Prospect | Grafton | Prospect | |
| Hackett Mine | Grafton | Surface | Prospect |
| Hale Mica Mine | Grafton | Surface | Prospect |
| Hanley Pasture Lot | Grafton | Surface | Past Producer |
| Hope Farm Mica Prospect | Cheshire | Prospect | |
| Hoyt Hill Mica Mine | Grafton | Surface | Past Producer |
| Hoyt and Jewell Properties | Grafton | Prospect | |
| Hutchins Hill Mica Mine | Grafton | Surface-Underground | Prospect |
| Island Mica Mine | Cheshire | Surface-Underground | Prospect |
| Itaska Mica Mine | Grafton | Surface | Prospect |
| John Felker Mica Prospect | Strafford | Surface | Prospect |
| Justin Nichols Mica Prospect | Sullivan | Surface | Prospect |
| Keniston Mica Prospect | Grafton | Prospect | |
| Keyes Mica Mines, No. 1 & 2 | Grafton | Surface | Prospect |
| Keyes Mica Mines, No. 3 & 4 | Grafton | Surface | Prospect |
| Keyes Mica Mines, No. 5 & 6 | Grafton | Surface-Underground | Prospect |
| Ledge Pond Mica Mine | Sullivan | Surface | Prospect |
| Leggett Mica Prospect | Grafton | Surface | Prospect |
| Marston Mica Mine | Grafton | Surface | Prospect |
| McGinnis Mica Mine | Grafton | Surface-Underground | Prospect |