Data / Mines / Utah / Metal mines
Metal ore mines in Utah: 15 open mines and MSHA citations
MSHA lists 15 open metal ore mines in Utah, run by 12 operators and employing 1,603 people. Since January 1, 2022 its inspectors issued 1,409 citations and orders there with $1,264,238 in proposed penalties, and operators reported 182 injury or illness cases, 1 of them fatal. The operators with the most open mines are Kennecott Utah Copper LLC; Efr Colorado Plateau LLC; Tintic Consolidated Metals LLC. Data from MSHA, November 6, 2026.
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- Open mines
- 15
- Operators
- 12
- Employees
- 1,603
- Active
- 10
- Temporarily Idled
- 3
- Intermittent
- 1
- NonProducing
- 1
- Mines run by individuals, counted and not listed
- 1
- Citations and orders since January 1, 2022
- 1,409
- Significant and substantial
- 223 (15.8%)
- Closure orders
- 29
- High negligence or reckless
- 102
- Proposed penalties
- $1,264,238
- Amount paid so far
- $1,189,075
- Inspections
- 302
- Inspector hours on site
- 8,942
- Citations per inspection
- 4.67 (all mines 2.30)
- Accident reports
- 189
- Injury and illness cases
- 182
- Fatalities
- 1
- Latest MSHA record
- November 5, 2026
Operators with the most open mines in Utah
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Kennecott Utah Copper LLC | 3 | 1,140 | 906 | $871,192 | 111 |
| Efr Colorado Plateau LLC | 2 | 45 | 63 | $10,029 | 6 |
| Tintic Consolidated Metals LLC | 1 | 70 | 125 | $194,506 | 8 |
| Milford Mining Company Utah, LLC | 1 | 2 | 90 | $71,490 | 7 |
| Desert Hawk Gold Corp | 1 | 4 | 79 | $52,857 | 2 |
| Materion Natural Resources | 1 | 80 | 55 | $15,439 | 8 |
| Utah Iron, LLC | 1 | 104 | 45 | $38,811 | 10 |
| Efr White Mesa LLC | 1 | 89 | 29 | $4,487 | 13 |
| Mariana Copper One | 1 | 60 | 9 | $4,521 | 17 |
| Cur Henry Mountains Uranium LLC | 1 | 4 | 6 | $906 | 0 |
| Anfield Resources Holding Corp. | 1 | 3 | 0 | $0 | 0 |
Operators with the most citations in Utah
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Kennecott Utah Copper LLC | 3 | 1,140 | 906 | $871,192 | 111 |
| Tintic Consolidated Metals LLC | 1 | 70 | 125 | $194,506 | 8 |
| Milford Mining Company Utah, LLC | 1 | 2 | 90 | $71,490 | 7 |
| Desert Hawk Gold Corp | 1 | 4 | 79 | $52,857 | 2 |
| Efr Colorado Plateau LLC | 2 | 45 | 63 | $10,029 | 6 |
| Materion Natural Resources | 1 | 80 | 55 | $15,439 | 8 |
| Utah Iron, LLC | 1 | 104 | 45 | $38,811 | 10 |
| Efr White Mesa LLC | 1 | 89 | 29 | $4,487 | 13 |
| Mariana Copper One | 1 | 60 | 9 | $4,521 | 17 |
| Cur Henry Mountains Uranium LLC | 1 | 4 | 6 | $906 | 0 |
| Anfield Resources Holding Corp. | 1 | 3 | 0 | $0 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Bingham Canyon Mine | Kennecott Utah Copper LLC | Salt Lake County, UT | Copper ore | 876 | 487 |
| Copperton Concentrator | Kennecott Utah Copper LLC | Salt Lake County, UT | Copper ore | 233 | 385 |
| Trixie | Tintic Consolidated Metals LLC | Utah County, UT | Gold ore | 70 | 125 |
| Ok and Hidden Treasure | Milford Mining Company Utah, LLC | Beaver County, UT | Copper ore | 2 | 90 |
| Kiewit Mine | Desert Hawk Gold Corp | Tooele County, UT | Gold ore | 4 | 79 |
| La Sal Complex | Efr Colorado Plateau LLC | San Juan County, UT | Uranium ore | 45 | 63 |
| Materion Natural Resources | Materion Natural Resources | Millard County, UT | Beryl-beryllium ore | 80 | 55 |
| Comstock / Mountain Lion | Utah Iron, LLC | Iron County, UT | Iron ore | 104 | 45 |
| Kennecott Keystone Underground | Kennecott Utah Copper LLC | Salt Lake County, UT | Copper ore | 31 | 34 |
| White Mesa Mill | Efr White Mesa LLC | San Juan County, UT | Uranium ore | 89 | 29 |
| Lisbon Valley Mining Co | Mariana Copper One | San Juan County, UT | Copper ore | 60 | 9 |
| Tony M | Cur Henry Mountains Uranium LLC | Garfield County, UT | Uranium ore | 4 | 6 |
| Velvet Mine | Anfield Resources Holding Corp. | San Juan County, UT | Uranium ore | 3 | 0 |
| Energy Queen | Efr Colorado Plateau LLC | San Juan County, UT | Uranium ore | 0 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Copper ore | 5 | 33.3% |
| Uranium ore | 5 | 33.3% |
| Gold ore | 3 | 20% |
| Beryl-beryllium ore | 1 | 6.7% |
| Iron ore | 1 | 6.7% |
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 229 | 28 | $177,918 | 19 |
| 2023 | 296 | 44 | $382,251 | 28 |
| 2024 | 239 | 49 | $170,244 | 49 |
| 2025 | 447 | 81 | $360,694 | 52 |
| 2026 | 198 | 21 | $173,131 | 34 |
Standards cited most at metal ore mines in Utah
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 147 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 109 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 90 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 71 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 53 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 53 |
| 30 CFR 47.41 | Hazard communication | 47 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 47 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 44 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 35 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 33 |
| 30 CFR 56.4102 | Surface metal and nonmetal mines | 29 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 26 |
| 30 CFR 57.14100 | Underground metal and nonmetal mines | 22 |
| 30 CFR 56.17001 | Surface metal and nonmetal mines | 21 |
Injury and illness cases at metal ore mines in Utah
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 1 |
| Permanent disability | 2 |
| Days away from work or restricted activity | 111 |
| No lost time, or an occupational illness | 68 |
What the accident reports at metal ore mines in Utah describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 41 |
| Slip or fall of person | 37 |
| Machinery | 30 |
| Powered haulage | 25 |
| Handtools (nonpowered) | 23 |
| Fall of roof or back | 4 |
| Stepping or kneeling on object | 4 |
| Electrical | 4 |
| Disorders (repeated trauma) | 4 |
| Other | 4 |
Equipment named in accident reports at metal ore mines in Utah
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 25 |
| Ore haulage trucks - off highway trucks | 15 |
| Hand tools (powered) | 10 |
| Front-end loader | 6 |
| Bulldozer | 5 |
| Shovel | 5 |
| Machine | 4 |
| Mancar | 4 |
| Trucks | 4 |
| Crane | 3 |
Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.