Mines in Knox County, Maine
149Total
14Active
| Mine | Commodity | Type | Status | Source |
|---|---|---|---|---|
| Hard Rock Quarry | Construction Sand and Gravel | Surface | Active | MSHA |
| Portable Plant | Construction Sand and Gravel | Surface | Active | MSHA |
| Ferraiolo Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Foley Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Foley Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Foley Pit Waldboro | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Griffin Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Rockland Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Thomaston Quarry & Cement Mill | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Union Quarry | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Warren Aggregate Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Warren Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Warren Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Washington Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| 341 Rock Quarry | Crushed, Broken Stone NEC | Surface | Intermittent | MSHA |
| Achorn Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Appleton Mine | Copper | Occurrence | MRDS | |
| Appleton Prospect | Underground | Unknown | MRDS | |
| Armbrust Quarry | Granite | Surface | Past Producer | MRDS |
| Astec Gt165 | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Astec Gt165df Mobile Screening Plant | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Austin Pasture Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Bartlett Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Bassick Quarry | Granite | Surface | Past Producer | MRDS |
| Beechwood Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Black Quarry | Granite | Surface | Past Producer | MRDS |
| Blackington Farm Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Bodwell Black Granite Quarry | Granite | Surface | Past Producer | MRDS |
| Bog Hole Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Brown Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Burnt Island Prospect | Iron | Prospect | MRDS | |
| Cedarapids Crc1150s | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Charles Crockett Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Clark Island Quarry | Granite | Surface | Past Producer | MRDS |
| Crawford Pond | Nickel, Copper, Cobalt | Occurrence | MRDS | |
| Creighton Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Creighton Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Crusher C654 | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Cundell Island Quarry | Granite | Surface | Past Producer | MRDS |
| Cushing Pit | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Davis Pit | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Dix Island Quarry | Granite | Surface | Past Producer | MRDS |
| Dougherty Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Duschane Hill Quarry | Granite | Surface | Past Producer | MRDS |
| Eels Mine | Silver, Copper | Past Producer | MRDS | |
| Engine Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Fox Island Quarry | Dimension Stone NEC | Surface | Abandoned | MSHA |
| Flat Ledge Quarry | Granite | Surface | Past Producer | MRDS |
| Fulling Mill Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| G U Ulmer Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Gay Quarry | Calcium | Surface | Past Producer | MRDS |
| George C Hall | Sand and Gravel, Construction | Past Producer | MRDS | |
| George Gins Quarry | Granite | Surface | Past Producer | MRDS |
| Goose River Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Green Quarry | Granite | Surface | Past Producer | MRDS |
| Gross Mine | Underground | Unknown | MRDS | |
| Heritage Valley Quarry | Crushed, Broken Granite | Surface | Abandoned | MSHA |
| Harbor Quarry | Granite | Surface | Past Producer | MRDS |
| Hard Rock Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Harriman Prospect | Nickel, Copper | Occurrence | MRDS | |
| Harriman Prospect | Nickel | Surface | Prospect | MRDS |
| Hart Pit | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| High Isle Quarry | Granite | Surface | Past Producer | MRDS |
| Hocking Granite Quarry | Granite | Surface | Past Producer | MRDS |
| Hurley Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Hurricane Island Quarries | Granite | Surface | Past Producer | MRDS |
| Indian Creek Quarry | Granite | Surface | Past Producer | MRDS |
| Island City Prospect | Lead | Prospect | MRDS | |
| Isle Au Haut Prospect | Underground | Unknown | MRDS | |
| Jacob's Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| John Swenson | Granite | Past Producer | MRDS | |
| Knox | Nickel | Surface | Occurrence | MRDS |
| Knox Lime Co. Quarry | Stone, Crushed/Broken | Unknown | MRDS | |
| Knox Lime Co. Quarry | Stone, Crushed/Broken | Unknown | MRDS | |
| Knox Lime Co. Quarry | Stone, Crushed/Broken | Unknown | MRDS | |
| Knox Lime Co. Quarry | Stone, Crushed/Broken | Unknown | MRDS | |
| Knox Lime Co. Quarry | Stone, Crushed/Broken | Unknown | MRDS | |
| Knox Lime Co. Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Knox Lime Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Knox Lime Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Knox Lime Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Liberty Pit Crusher | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Lily Pond Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Lime Products Corp | Limestone, General | Past Producer | MRDS | |
| Lime Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Limestone Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Limestone Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Long Cove Quarry | Granite | Surface | Past Producer | MRDS |
| Magnesia Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Marine Transportation Corp | Limestone, General | Past Producer | MRDS | |
| Marriners, Inc. | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Martin Marietta Cement | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Martin-marietta Cement Corp | Calcium | Past Producer | MRDS | |
| Mc Conchie Black Granite Quarry | Granite | Surface | Past Producer | MRDS |
| Mcloon Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Mills Excavation Inc. | Crushed, Broken Stone NEC | Surface | Intermittent | MSHA |
| Nichols Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Nordberg Cv 100 | Construction Sand and Gravel | Surface | Temporarily Idled | MSHA |
| O B Ulmer Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Oe-15 Extec Screener | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Owl's Head Prospect | Gold | Surface-Underground | Prospect | MRDS |
| Page Mine | Gold | Past Producer | MRDS | |
| Paint Hole Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Palmer Quarry | Granite | Surface | Past Producer | MRDS |
| Pease Pit | Construction Sand and Gravel | Surface | Temporarily Idled | MSHA |
| Pequoit Quarry | Granite | Surface | Past Producer | MRDS |
| Pequoit; Sands; Duchesnehill Granite Quarries | Molybdenum, Zirconium | Occurrence | MRDS | |
| Pike Washington | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Pioneer Jaw Crusher & Metso Cone Crusher | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Portable Pioneer Plant | Crushed, Broken Limestone NEC | Surface | Intermittent | MSHA |
| Porterfield Ledge Mine | Silver | Prospect | MRDS | |
| Portersfield Prospect | Underground | Unknown | MRDS | |
| Powerscreen Premiertrak 400x | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Quarry- 2 | Construction Sand and Gravel | Surface | Temporarily Idled | MSHA |
| Ranta Pit | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Riverside Mine | Lead | Past Producer | MRDS | |
| Riverside Prospect | Underground | Unknown | MRDS | |
| Rockland City Prospect | Silver | Underground | Prospect | MRDS |
| Rockland Plant | Perlite | Processing Plant | Plant | MRDS |
| Roland Cushee Farm Prospect | Copper | Occurrence | MRDS | |
| Sands Quarry | Granite | Surface | Past Producer | MRDS |
| Shephard Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Simonton Corners Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Sleeper Field Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Snow Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Soft Rock Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Sprucehead Quarry | Granite | Surface | Past Producer | MRDS |
| Starr Brothers Inc | Sand and Gravel, Construction | Past Producer | MRDS | |
| Starrett Mine | Feldspar | Past Producer | MRDS | |
| Starrett Property | Lithium | Past Producer | MRDS | |
| Starrett Prospect | Feldspar | Prospect | MRDS | |
| State Prison Farm Prospect | Feldspar | Prospect | MRDS | |
| Sukeforth Excavation & Trucking | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Thomaston Cement Plant | Cement | Facility | Abandoned | MSHA |
| Thomaston Mill | Sand and Gravel, Construction | Processing Plant | Plant | MRDS |
| Thomaston Pit | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Thomaston Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Tony Lash Excavation | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Unnamed Mine | Silver | Prospect | MRDS | |
| Unnamed Quarry | Granite | Surface | Past Producer | MRDS |
| Unnamed Quarry | Granite | Surface | Past Producer | MRDS |
| Warren Nickel Deposit | Cobalt, Nickel | Occurrence | MRDS | |
| Washington Crusher | Crushed, Broken Stone NEC | Surface | Abandoned | MSHA |
| Washington Pit #2 | Construction Sand and Gravel | Surface | Temporarily Idled | MSHA |
| Washington Quarry | Crushed, Broken Stone NEC | Surface | Abandoned | MSHA |
| Webster Quarry | Granite | Surface | Past Producer | MRDS |
| Weskeag Quarry | Granite | Surface | Past Producer | MRDS |
| Wildcat Quarry | Granite | Surface | Past Producer | MRDS |
| Williams Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |