Checked
Mines in Colorado
Mines reported to the Mine Safety and Health Administration
- Mines listed
- 315
- Active
- 135
- Employees
- 4,045
- Accidents reported in 2025
- 109
Mines are listed from MSHA's mine data, excluding mines recorded as abandoned. Accident counts are reports filed with MSHA for the calendar year, including injuries and illnesses at the mine, and are counts only. Operator names are shown only when they are companies or agencies.
Largest mines by employees
Swipe the table sideways to see more columns.
| Mine | Type | Status | Employees | Accidents 2025 |
|---|---|---|---|---|
| Cripple Creek and Victor Gold Mining Com | Metal/nonmetal, Surface | Active | 514 | 6 |
| Henderson Operations | Metal/nonmetal, Underground | Active | 373 | 7 |
| Climax Mine | Metal/nonmetal, Surface | Active | 315 | 12 |
| West Elk Mine | Coal, Underground | Active | 275 | 14 |
| Amrize Portland Plant | Metal/nonmetal, Facility | Active | 175 | 6 |
| Deserado Mine | Coal, Underground | Active | 157 | 4 |
| Colowyo Mine | Coal, Surface | NonProducing | 150 | 6 |
| Foidel Creek Mine | Coal, Underground | Active | 136 | 12 |
| Lyons Cement Plant Cemex Inc | Metal/nonmetal, Facility | Active | 89 | 7 |
| Keenesburg #2 | Metal/nonmetal, Surface | Active | 85 | 2 |
| Pueblo Plant & Quarry | Metal/nonmetal, Facility | Active | 82 | 5 |
| Trapper Mine | Coal, Surface | Active | 66 | 1 |
| King II | Coal, Underground | Active | 48 | 2 |
| Amrize Morrison Quarry | Metal/nonmetal, Surface | Active | 42 | 2 |
| Walstrum Quarry | Metal/nonmetal, Surface | Active | 35 | 1 |
| Spec Agg Quarry | Metal/nonmetal, Surface | Active | 32 | 1 |
| Amrize Canon City Quarry | Metal/nonmetal, Surface | Active | 25 | 1 |
| Hotchkiss Mine | Metal/nonmetal, Surface | Intermittent | 25 | 0 |
| Menzer Quarry | Metal/nonmetal, Surface | Active | 25 | 0 |
| Owl Canyon Quarry & Mill | Metal/nonmetal, Surface | Active | 25 | 2 |
| Trupp Loveland | Metal/nonmetal, Surface | Active | 24 | 3 |
| Riverbend Sand and Gravel | Metal/nonmetal, Surface | Active | 23 | 0 |
| Pit 25-Morton Lakes | Metal/nonmetal, Surface | Intermittent | 22 | 1 |
| 115 WP | Metal/nonmetal, Surface | Active | 20 | 1 |
| Pride of America Mine | Metal/nonmetal, Underground | Active | 19 | 0 |
| Firestone Gravel Resource | Metal/nonmetal, Surface | Active | 18 | 0 |
| Lamar Sand & Gravel | Metal/nonmetal, Surface | Active | 18 | 0 |
| Ralston Quarry | Metal/nonmetal, Surface | Intermittent | 17 | 0 |
| Portable Crusher #4 | Metal/nonmetal, Surface | Active | 15 | 0 |
| Bennett Pit | Metal/nonmetal, Surface | Active | 14 | 1 |
| Box Creek Placer | Metal/nonmetal, Surface | Intermittent | 14 | 0 |
| Sweet Valley Reservoir Complex | Metal/nonmetal, Surface | Intermittent | 14 | 0 |
| Telluride Airport Pit | Metal/nonmetal, Surface | Active | 14 | 0 |
| Amrize Daniels Sand Pit # 1 & 2 | Metal/nonmetal, Surface | Active | 13 | 0 |
| Amrize Solberg Pit | Metal/nonmetal, Surface | Active | 13 | 0 |
| Eagle Gypsum Mine | Metal/nonmetal, Surface | Intermittent | 13 | 0 |
| Revenue Mine | Metal/nonmetal, Underground | NonProducing | 13 | 0 |
| Consolidated Caribou District | Metal/nonmetal, Underground | NonProducing | 12 | 0 |
| Cross Mine | Metal/nonmetal, Underground | NonProducing | 12 | 0 |
| Stone Wholesale Brownstone Quarry | Metal/nonmetal, Surface | Active | 12 | 0 |
| Sunday Mine | Metal/nonmetal, Underground | Temporarily Idled | 12 | 0 |
| Whitewater #81 | Metal/nonmetal, Surface | Active | 12 | 0 |
| Butala Construction Company | Metal/nonmetal, Surface | Active | 11 | 0 |
| Penrose Ranch Gravel Pit | Metal/nonmetal, Surface | Active | 11 | 0 |
| Sprague Stone LLC | Metal/nonmetal, Surface | Active | 11 | 0 |
| Amrize Distel Plant | Metal/nonmetal, Surface | Active | 10 | 0 |
| Amrize Platte Valley Plant | Metal/nonmetal, Surface | Active | 10 | 0 |
| Antonito Plant (Bag Plant) | Metal/nonmetal, Surface | Active | 10 | 0 |
| Arcosa Boulder Plant #1604 | Metal/nonmetal, Surface | Intermittent | 10 | 2 |
| County Road 23 Pit | Metal/nonmetal, Surface | Intermittent | 10 | 0 |
| Flag Sand & Gravel | Metal/nonmetal, Surface | Active | 10 | 1 |
| Maryland Creek | Metal/nonmetal, Surface | Active | 10 | 0 |
| Milner Pit | Metal/nonmetal, Surface | Intermittent | 10 | 0 |
| Noland Quarry | Metal/nonmetal, Surface | Intermittent | 10 | 0 |
| North Weld Gravel Pit | Metal/nonmetal, Surface | Active | 10 | 1 |
| Portable Crusher #1 | Metal/nonmetal, Surface | Active | 10 | 0 |
| Red Canyon Quarry | Metal/nonmetal, Surface | Active | 10 | 0 |
| Yrr | Metal/nonmetal, Surface | Active | 10 | 1 |
| Amrize Scout Island | Metal/nonmetal, Surface | Active | 9 | 0 |
| Hunt Water Res #2 | Metal/nonmetal, Surface | Active | 9 | 0 |
| Inouye Gravel Mine | Metal/nonmetal, Surface | Active | 9 | 0 |
| Jeffco Gravel Mine | Metal/nonmetal, Surface | Active | 9 | 0 |
| Portable Crusher #1 | Metal/nonmetal, Surface | Active | 9 | 0 |
| Two Rivers | Metal/nonmetal, Surface | Intermittent | 9 | 0 |
| 50-3-22 Portable Wash Plant | Metal/nonmetal, Surface | Intermittent | 8 | 0 |
| Barnard Quarry | Metal/nonmetal, Surface | Intermittent | 8 | 0 |
| Chavers Mining Resource | Metal/nonmetal, Surface | Active | 8 | 0 |
| Meadow Hollow Quarry | Metal/nonmetal, Surface | Active | 8 | 0 |
| Moffat Limestone | Metal/nonmetal, Surface | Intermittent | 8 | 0 |
| Portable Crusher #2 | Metal/nonmetal, Surface | Intermittent | 8 | 0 |
| Parsons Sand and Gravel | Metal/nonmetal, Surface | Active | 8 | 0 |
| Silt Plant | Metal/nonmetal, Surface | Active | 8 | 1 |
| Tomichi No 1 | Metal/nonmetal, Surface | Intermittent | 8 | 0 |
| 400 Patriot | Metal/nonmetal, Surface | Active | 7 | 0 |
| Best Sand and Gravel | Metal/nonmetal, Surface | Active | 7 | 0 |
| Cr9 | Metal/nonmetal, Surface | Active | 7 | 0 |
| Carbondale Plant | Metal/nonmetal, Surface | Active | 7 | 0 |
| Heartland Aggregate Mining | Metal/nonmetal, Surface | Active | 7 | 0 |
| Pit 23-Fairplay | Metal/nonmetal, Surface | Active | 7 | 0 |
| Portable Crusher # 5 | Metal/nonmetal, Surface | Intermittent | 7 | 0 |
| Rocky Road Quarry | Metal/nonmetal, Surface | Intermittent | 7 | 0 |
| Washplant | Metal/nonmetal, Surface | New Mine | 7 | 0 |
| Fort Lupton Sand & Gravel | Metal/nonmetal, Surface | Active | 6 | 1 |
| Four X Ranch Gravel Pit | Metal/nonmetal, Surface | Intermittent | 6 | 0 |
| Langston Concrete Inc. | Metal/nonmetal, Surface | Active | 6 | 0 |
| Moores Pit | Metal/nonmetal, Surface | Active | 6 | 0 |
| Nissen Gravel Mine | Metal/nonmetal, Surface | Active | 6 | 0 |
| Portable | Metal/nonmetal, Surface | Intermittent | 6 | 0 |
| Portable Crusher #6 | Metal/nonmetal, Surface | Intermittent | 6 | 0 |
| Portable Crusher# 2 | Metal/nonmetal, Surface | Intermittent | 6 | 0 |
| Portable Wash Plant #3 | Metal/nonmetal, Surface | Intermittent | 6 | 0 |
| Ragsdale Reservoirs | Metal/nonmetal, Surface | Active | 6 | 0 |
| Rich Pit | Metal/nonmetal, Surface | Active | 6 | 0 |
| Western Gravel Inc. | Metal/nonmetal, Surface | Active | 6 | 0 |
| 50-3-13 Pioneer 3042 Jaw Crusher | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Amrize Fourmile (J&J Stone Pit #1) | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Amrize RP2 (Rock Pit #2) | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Bancroft Placer Mine | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Church Harvey Mine | Metal/nonmetal, Surface | Active | 5 | 0 |
| Cr 6 | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Coulson Portable | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Coulson Portable Wash Plant | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Crusher 1 | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Crusher 2 | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Fountain Pit | Metal/nonmetal, Surface | Active | 5 | 1 |
| Green/Croissant | Metal/nonmetal, Surface | Active | 5 | 0 |
| Grey Goose | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Leone Gravel Pit | Metal/nonmetal, Surface | Active | 5 | 0 |
| Mathias North Pit | Metal/nonmetal, Surface | Temporarily Idled | 5 | 0 |
| New Wash Plant | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| PORTABLE #1 Fort Collins | Metal/nonmetal, Surface | Active | 5 | 0 |
| Pit 26-Nix | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Portable Crusher 2 | Metal/nonmetal, Surface | Active | 5 | 0 |
| Portable Crusher# 1 | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Portable Crushing Plant #6 | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Robins Portable | Metal/nonmetal, Surface | Active | 5 | 0 |
| Robins Portable 2 | Metal/nonmetal, Surface | Active | 5 | 0 |
| Steamboat Sand and Gravel Pit | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| Urie Gravel Pit (Permit M-2009-038) | Metal/nonmetal, Surface | Intermittent | 5 | 0 |
| VIP Mine | Metal/nonmetal, Surface | Active | 5 | 0 |
| West Rifle Pit | Metal/nonmetal, Surface | Active | 5 | 0 |
| Aggregate Processing Plant | Metal/nonmetal, Surface | Active | 4 | 0 |
| Ashley Pit | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Beech Hill Quarry | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Bedrock / Pinion | Metal/nonmetal, Surface | Active | 4 | 0 |
| Black Canyon Aggregate Inc | Metal/nonmetal, Surface | Active | 4 | 0 |
| Bowie No 2 Mine | Coal, Facility | NonProducing | 4 | 0 |
| CAS Rental Crusher and Screen | Metal/nonmetal, Surface | Active | 4 | 0 |
| CO Crusher | Metal/nonmetal, Surface | Active | 4 | 0 |
| Cr10 | Metal/nonmetal, Surface | Active | 4 | 0 |
| Cr5 | Metal/nonmetal, Surface | Active | 4 | 1 |
| Cr6 | Metal/nonmetal, Surface | Active | 4 | 0 |
| Crusher 1 | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Crossfire 4 Corners Plant #1 | Metal/nonmetal, Surface | Active | 4 | 0 |
| Crusher #6 | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Crusher 5 | Metal/nonmetal, Surface | Temporarily Idled | 4 | 0 |
| Era - 1 | Metal/nonmetal, Surface | Active | 4 | 0 |
| Gold Links | Metal/nonmetal, Underground | Temporarily Idled | 4 | 0 |
| High Country Hard Rock - Williams Pit | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Montezuma County | Metal/nonmetal, Surface | Temporarily Idled | 4 | 0 |
| Meeker Stone Company | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Mesa Sandstone LLC | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Overlook Mine | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Portable 2 | Metal/nonmetal, Surface | Active | 4 | 0 |
| Portable #1 | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Portable Crusher #1 | Metal/nonmetal, Surface | Active | 4 | 1 |
| Portable Crusher #3 | Metal/nonmetal, Surface | Active | 4 | 1 |
| Portable Unit Eljay1140 | Metal/nonmetal, Surface | Active | 4 | 0 |
| Portable Wash Plant (WP #4) | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Sp4 | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Sheehan Pit | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Snare Construction Inc and Materials | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| Stone Ranch Pit | Metal/nonmetal, Surface | Active | 4 | 0 |
| Suncore West Colorado | Metal/nonmetal, Surface | Active | 4 | 0 |
| Swift Pit | Metal/nonmetal, Surface | Temporarily Idled | 4 | 0 |
| Willow Creek Mine | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| wash plant1 | Metal/nonmetal, Surface | Intermittent | 4 | 0 |
| 50-10 Aggregate Prep Plant | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| 50-3-19 Nordberg 3054 Jaw Crusher | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Antero Gravel Pit | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Benson Brothers Aggregate | Metal/nonmetal, Surface | Active | 3 | 0 |
| Bucklen Equipment Company Incorporated | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Buffalo Hunter Load | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Cr3 | Metal/nonmetal, Surface | Active | 3 | 0 |
| Cr7 | Metal/nonmetal, Surface | Active | 3 | 1 |
| Cr8 | Metal/nonmetal, Surface | Active | 3 | 0 |
| Crusher #1 | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Crusher #2 | Metal/nonmetal, Surface | Active | 3 | 0 |
| Cedar Rapids 1 | Coal, Facility | Temporarily Idled | 3 | 0 |
| Colorado Lime Company | Metal/nonmetal, Surface | Active | 3 | 0 |
| Crusher #5 | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| D.C.1 | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| FCM Crusher 4 (CSP#4) | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| HP 300 (Crusher 4) | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| HP 300/ LT 106 Jaw Crusher | Metal/nonmetal, Surface | Active | 3 | 0 |
| Hampton Placer | Metal/nonmetal, Surface | New Mine | 3 | 0 |
| Hector Placer Mine | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Leone Huerfano Gravel Pit | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Masonville Quarry | Metal/nonmetal, Surface | Active | 3 | 0 |
| Mencenberg Quarry | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| McCoy Cinder Pit | Metal/nonmetal, Surface | Active | 3 | 0 |
| Metso | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Mobile HPSA Remediation Equipment | Metal/nonmetal, Surface | Active | 3 | 0 |
| Moffat County El Jay | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Monarch Quarry | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| New Haycamp | Metal/nonmetal, Surface | Active | 3 | 0 |
| O'Rourke Pit at South Fork | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Portable Crusher | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Portable Wash Plant #1 | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Pickering Family Pit | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Pioneer 2148 Portable Jaw Crusher | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Pit 21-Young Ranch | Metal/nonmetal, Surface | Active | 3 | 0 |
| Plant #1 | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Portable Crusher | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Portable Crusher #1 | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Portable Crusher #2 | Metal/nonmetal, Surface | Active | 3 | 0 |
| Portable Reclamation Crew | Metal/nonmetal, Surface | Intermittent | 3 | 0 |
| Portable Screen | Metal/nonmetal, Surface | Temporarily Idled | 3 | 0 |
| Portable Unit Extec | Metal/nonmetal, Surface | Active | 3 | 0 |
| Poudre Ponds Pit | Metal/nonmetal, Surface | Active | 3 | 0 |
Other mines
No employees reported
- 1995 Cedarapids Crusher · Active
- 3b Wash Plant · Active
- 50-3-03 Portable Wash Plant II · Intermittent
- 50-3-11 Rip Rap Plant Custombuilt · Intermittent
- Allen Pit · Intermittent
- Alma Placer · Intermittent
- Amrize Fremont Quarry · Intermittent
- Amrize Ingleside Quarry · Intermittent
- Amrize Phillips (McCloskey 89822) · Active
- Amrize Table Mountain Quarry · Active
- ASTEC 2512K Screening Plant · Temporarily Idled
- Astec Fold'n Go · Intermittent
- Baca Co Portable Crusher · Temporarily Idled
- Baca County District II Screening Plant · Intermittent
- Bates-Hunter Mine · NonProducing
- Bulldog Mine · Temporarily Idled
- Castle Rock Rock LLC · Active
- Center Redi Mix Inc · Intermittent
- Colorado Portable Barge · Intermittent
- County Road 23 Pit Rental Crusher · Temporarily Idled
- Cr # 5 · Intermittent
- Cr4 · Active
- Crossfire Piedra Wash Plant · Temporarily Idled
- Crusher · Intermittent
- Crusher 1 · Intermittent
- Crusher 2 · Active
- Crusher 2 · Temporarily Idled
- Crusher 4 · Active
- Crushing & Mobile Screening #1 · Intermittent
- Delta County Dist 4 Crusher · Temporarily Idled
- Denm · Active
- Denver Plant 60 Clay Mines · Intermittent
- Denver Rock · Active
- District #3 Screen Plant · Intermittent
- Durango Gravel J&J Pit · Active
- El Grande · Intermittent
- El Jay · Intermittent
- Evans Sand and Gravel · Active
- Ewing Gravel Pit · Active
- Fox Clay Pit · Intermittent
- Gardner Pit · Intermittent
- Glacier Rock Pit · Intermittent
- Gould Construction · Temporarily Idled
- Gunnison River Gravel Pits 1 & 5 · Temporarily Idled
- Hankins Stone Quarry #1 · Temporarily Idled
- Heitf Pit · Intermittent
- JH Sand & Gravel Pit #1 · Active
- Kichelmann 1 · Intermittent
- Kleemann MS15Z-Ad · Active
- Knox Pit · Active
- Lake County Crusher · Intermittent
- Loudwire Quarry · Intermittent
- Loveland Ready-Mix Concrete Inc Sand and · Active
- Lucky Strike Mine & Mill · Temporarily Idled
- Lyons Pit · Intermittent
- Mi Vida Portals · Temporarily Idled
- Mid-Continent Quarry · Intermittent
- Mule Creek Gravel Pit · Active
- Nelson Mining Resource · Active
- Newett Quarry · New Mine
- O'Bannon Pit · Intermittent
- Orlando Pit · Active
- Orr Pit · Intermittent
- Peabody Sage Creek Mine · Temporarily Idled
- Pit Number One · Intermittent
- Platte Sand and Gravel · Intermittent
- Portable #1 · Intermittent
- Portable #2 · Active
- Portable #5 Dredge · Intermittent
- Portable Crusher #2 · Active
- Portable Plant #13 · Intermittent
- Portable Plant 1 · Active
- Portable Plant 2 · Active
- Portable Plant 2 · Intermittent
- Portable Screening Plant · Intermittent
- Portable Screening Plant · Intermittent
- Portable Unit #1 · Intermittent
- Portable Unit #3 · Active
- Portable Unit #4 · Active
- PVRE Pit #1 · Intermittent
- Rancho Rosado Pit · Intermittent
- Routt County Crusher · Intermittent
- Routt County Primary Crusher · Intermittent
- Screen Plant · Temporarily Idled
- Snowstorm · Active
- SP 2 · Intermittent
- Sp3 · Intermittent
- Spider Screen · Intermittent
- Spyder Screen Plant · Intermittent
- Steincrusher LLC · Active
- Steincrusher LLC · Intermittent
- Sterling Screening Plant · Intermittent
- Sunset Industrial Pit · New Mine
- Tony J Beltramo & Sons Inc · Intermittent
- Topaz Mountain Gem Mine · Intermittent
- Track Jaw Crusher PS330 · Temporarily Idled
- Track Plant 1 · Temporarily Idled
- Tucker Custom Service · Intermittent
- Upland Pit #3 · Intermittent
- Von Doose · NonProducing
- Wagner Pit · Intermittent
- Wash Plant · Intermittent
- Wash Plant & Portable Screen · Intermittent
- Wash Plant #5 · Intermittent
- Wash Plant 2 · Intermittent
- Washplant 1 · Intermittent
- Washplant 3 · Intermittent
- Washplant 4 · Intermittent
- Weaver Quarry · Intermittent
- Whirlwind Mine · NonProducing
- Whitewater #71 · Intermittent
- WP 3 · Intermittent
- Wp1 · Intermittent
- Wp2 · Intermittent
- Yevoli Cobblestone Pit · Active
Source: Mine Safety and Health Administration, Open Government Data