Mines Near Longmont, Colorado
100 mines and mineral deposits within 25 miles of Longmont (population 89,919). Data from USGS MRDS and MSHA federal databases. Adjust radius or search a specific address →
Mines Within 25 Miles of Longmont
| Mine | Distance | Commodity | Type | Status |
|---|---|---|---|---|
| Longmont Plant | 0.2 mi | Sand and Gravel, Construction | Surface | Producer |
| South Flat Pit | 0.2 mi | Sand and Gravel, Construction | Surface | Producer |
| Button R Dam | 0.2 mi | Fluorine-Fluorite | Underground | Past Producer |
| Mountain Aggregates | 0.2 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Phil G Skrbina | 0.2 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Longmont Plant | 0.7 mi | Clay | Processing Plant | Producer |
| Unknown | 1.5 mi | Sand and Gravel, Construction | — | Occurrence |
| Irwin Thomas | 1.6 mi | Construction Sand and Gravel | Surface | Intermittent |
| Marnette | 1.6 mi | Sand and Gravel, Construction | Surface | Producer |
| Longmont Brick & Tile Co. | 2.4 mi | Clay | — | Producer |
| Lefthand Creek Placer | 2.6 mi | Gold | — | Occurrence |
| Longmont West Mine | 2.8 mi | Construction Sand and Gravel | Surface | Abandoned |
| Unknown | 3.0 mi | Sand and Gravel, Construction | — | Occurrence |
| Unknown | 3.1 mi | Sand and Gravel, Construction | — | Occurrence |
| Gravel Pit | 3.5 mi | Sand and Gravel, Construction | Surface | Producer |
| Unknown | 4.2 mi | Sand and Gravel, Construction | — | Occurrence |
| Frontier Pit and Plant | 4.3 mi | Sand and Gravel, Construction | Surface | Producer |
| Portable | 4.3 mi | Sand and Gravel, Construction | Processing Plant | Past Producer |
| Marlatt | 4.3 mi | Sand and Gravel, Construction | Surface | Producer |
| Amrize Distel Plant | 4.4 mi | Construction Sand and Gravel | Surface | Active |
| Gravel Pit | 4.6 mi | Sand and Gravel, Construction | Surface | Producer |
| Unknown | 4.9 mi | Sand and Gravel, Construction | — | Occurrence |
| Sand & Gravel | 5.0 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Hygiene Pit | 5.1 mi | Sand and Gravel, Construction | Surface | Producer |
| Unknown | 5.1 mi | Sand and Gravel, Construction | — | Occurrence |
| Rinn Valley Resource | 5.6 mi | Construction Sand and Gravel | Surface | Abandoned |
| New Girl | 5.7 mi | Fluorine-Fluorite | Underground | Past Producer |
| Sand & Gravel | 5.8 mi | Sand and Gravel, Construction | Surface | Producer |
| Unknown | 5.8 mi | Sand and Gravel, Construction | — | Occurrence |
| Unknown | 5.8 mi | Sand and Gravel, Construction | — | Occurrence |
| Gravel Pit | 6.0 mi | Sand and Gravel, Construction | Surface | Producer |
| Weng Pit | 6.1 mi | Sand and Gravel, Construction | Surface | Producer |
| Ziegler | 6.1 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Turnpike - Wet Plant | 6.2 mi | Construction Sand and Gravel | Surface | Abandoned |
| Cr - 27 | 6.2 mi | Construction Sand and Gravel | Surface | Abandoned |
| Cr-45 | 6.2 mi | Construction Sand and Gravel | Surface | Abandoned |
| Cr-29 | 6.2 mi | Construction Sand and Gravel | Surface | Abandoned |
| Nelson Mining Resource | 6.2 mi | Construction Sand and Gravel | Surface | Intermittent |
| Cr 44 | 6.2 mi | Construction Sand and Gravel | Surface | Abandoned |
| Jackson | 6.2 mi | Silver | Underground | Past Producer |
| Unknown | 6.2 mi | Sand and Gravel, Construction | — | Occurrence |
| Unknown | 6.2 mi | Sand and Gravel, Construction | — | Occurrence |
| Martin Marietta Limestone Quarry | 6.5 mi | Stone, Crushed/Broken | Surface | Producer |
| Portable Reclamation Crew | 6.9 mi | Construction Sand and Gravel | Surface | Intermittent |
| Unknown | 7.0 mi | Sand and Gravel, Construction | — | Occurrence |
| Unknown | 7.0 mi | Sand and Gravel, Construction | — | Occurrence |
| Helmer Bros | 7.1 mi | Sand and Gravel, Construction | Surface | Producer |
| Unknown | 7.2 mi | Sand and Gravel, Construction | — | Occurrence |
| 115 Dp | 7.2 mi | Construction Sand and Gravel | Surface | Abandoned |
| 117 Dp | 7.2 mi | Construction Sand and Gravel | Surface | Abandoned |
| Firestone Gravel Mine | 7.2 mi | Construction Sand and Gravel | Surface | Abandoned |
| Philbert | 7.2 mi | Construction Sand and Gravel | Surface | Abandoned |
| Firestone Gravel Mine | 7.3 mi | Construction Sand and Gravel | Surface | Abandoned |
| Nissen Gravel Mine | 7.3 mi | Construction Sand and Gravel | Surface | Active |
| Firestone Screen & Crush Plant | 7.3 mi | Construction Sand and Gravel | Surface | Abandoned |
| Asci Cr 22 | 7.3 mi | Construction Sand and Gravel | Surface | Abandoned |
| Unknown | 7.4 mi | Stone, Crushed/Broken | — | Occurrence |
| Lyons Cement Plant Cemex Inc | 7.7 mi | Cement | Facility | Active |
| Unknown | 8.0 mi | Sand and Gravel, Construction | — | Occurrence |
| Sandstone Quarry | 8.1 mi | Crushed, Broken Sandstone | Surface | Abandoned |
| Larimer Quarry | 8.1 mi | Stone | Surface | Producer |
| Beaver | 8.1 mi | Gold | Underground | Past Producer |
| Martin-Marietta Cement Plant | 8.2 mi | Stone, Crushed/Broken | Processing Plant | Producer |
| Goose Haven Pit | 8.3 mi | Construction Sand and Gravel | Surface | Abandoned |
| Erie Pit | 8.6 mi | Sand and Gravel, Construction | Surface | Past Producer |
| Unknown | 8.6 mi | Sand and Gravel, Construction | — | Occurrence |
| Gravel Pit | 8.7 mi | Sand and Gravel, Construction | Surface | Producer |
| Carbon Valley Resource | 8.7 mi | Construction Sand and Gravel | Surface | Abandoned |
| Unknown | 8.9 mi | Sand and Gravel, Construction | — | Occurrence |
| Boulder Mill | 9.0 mi | Gold | Processing Plant | Past Producer |
| Unknown | 9.2 mi | Stone, Crushed/Broken | — | Occurrence |
| Cr-26 | 9.2 mi | Construction Sand and Gravel | Surface | Abandoned |
| Rose Mary | 9.4 mi | Uranium | — | Occurrence |
| St. Vrain | 9.4 mi | Sand and Gravel, Construction | Surface | Producer |
| Meadow Hollow Quarry | 9.4 mi | Dimension Stone NEC | Surface | Active |
| Unknown | 9.4 mi | Fire Clay (Refractory) | — | Occurrence |
| Del Camino Sand & Gravel Mine | 9.5 mi | Construction Sand and Gravel | Surface | Abandoned |
| Unknown | 9.6 mi | Fire Clay (Refractory) | — | Occurrence |
| Firestone Gravel Resource | 9.6 mi | Construction Sand and Gravel | Surface | Active |
| McCall Quarries | 9.6 mi | Flagstone | Surface | Past Producer |
| Dewey Rocky Mountain | 9.6 mi | Stone, Crushed/Broken | Surface | Past Producer |
| Dale Taylor Lease Loukon | 9.6 mi | Stone, Crushed/Broken | Surface | Producer |
| Silica Quarry | 9.6 mi | Silica | Surface | Producer |
| Noland | 9.6 mi | Flagstone | Surface | Past Producer |
| Carol Gore | 9.6 mi | Flagstone | Surface | Past Producer |
| Andesite Rock Quarry | 9.6 mi | Stone, Crushed/Broken | Surface | Producer |
| Steamboat Valley | 9.6 mi | Flagstone | Surface | Past Producer |
| Hammons | 9.6 mi | Flagstone | Surface | Past Producer |
| Kline | 9.6 mi | Flagstone | Underground | Past Producer |
| Denver Rock Quarry | 9.6 mi | Tungsten | Processing Plant | Past Producer |
| United Building Stone | 9.6 mi | Flagstone | Surface | Past Producer |
| Rawley | 9.6 mi | Flagstone | Surface | Past Producer |
| Johnson | 9.6 mi | Flagstone | Surface | Past Producer |
| Pfiefer | 9.6 mi | Flagstone | Surface | Past Producer |
| University of Colorado Quarry | 9.6 mi | Flagstone | Surface | Past Producer |
| McConnel | 9.6 mi | Flagstone | Surface | Past Producer |
| Brodies Saint Vrain | 9.6 mi | Flagstone | Surface | Past Producer |
| Lyons | 9.6 mi | Stone, Crushed/Broken | Surface | Producer |
| Ramey | 9.6 mi | Flagstone | Surface | Past Producer |
| Summers | 9.6 mi | Flagstone | Surface | Past Producer |