Data / Mines / Arizona / Metal mines
Metal ore mines in Arizona: 32 open mines and MSHA citations
MSHA lists 32 open metal ore mines in Arizona, run by 26 operators and employing 12,438 people. Since January 1, 2022 its inspectors issued 3,711 citations and orders there with $3,487,373 in proposed penalties, and operators reported 1,606 injury or illness cases, 2 of them fatal. The operators with the most open mines are Asarco LLC, a Delaware Limited Liability Company; Silver Bullet Holdings; Rango Inc.. Data from MSHA, November 6, 2026.
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- Open mines
- 32
- Operators
- 26
- Employees
- 12,438
- Active
- 21
- NonProducing
- 5
- Intermittent
- 3
- Temporarily Idled
- 3
- Mines run by individuals, counted and not listed
- 4
- Citations and orders since January 1, 2022
- 3,711
- Significant and substantial
- 560 (15.1%)
- Closure orders
- 82
- High negligence or reckless
- 308
- Proposed penalties
- $3,487,373
- Amount paid so far
- $2,504,086
- Inspections
- 860
- Inspector hours on site
- 21,548
- Citations per inspection
- 4.32 (all mines 2.30)
- Accident reports
- 1,625
- Injury and illness cases
- 1,606
- Fatalities
- 2
- Latest MSHA record
- November 3, 2026
Operators with the most open mines in Arizona
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 |
|---|---|---|---|---|---|
| Asarco LLC, a Delaware Limited Liability Company | 4 | 1,394 | 770 | $689,527 | 147 |
| Silver Bullet Holdings | 2 | 8 | 49 | $18,474 | 0 |
| Rango Inc. | 2 | 2 | 8 | $1,066 | 1 |
| Freeport-McMoRan Morenci Inc. | 1 | 5,870 | 1,087 | $1,230,992 | 784 |
| Pinto Valley Mining Corp. | 1 | 728 | 417 | $501,229 | 80 |
| Freeport-McMoRan Bagdad Inc | 1 | 1,386 | 315 | $323,030 | 157 |
| Freeport-McMoRan Safford Inc | 1 | 1,071 | 244 | $170,437 | 162 |
| Gold Road Mining Corp | 1 | 58 | 64 | $9,379 | 1 |
| Golden Vertex Corp | 1 | 71 | 62 | $16,951 | 9 |
| Resolution Copper Mining LLC | 1 | 180 | 49 | $15,744 | 5 |
| Efr Arizona Strip LLC | 1 | 32 | 42 | $6,637 | 7 |
| Origin Mining Company, LLC. | 1 | 204 | 41 | $14,755 | 18 |
| South32 Hermosa Inc. | 1 | 0 | 34 | $7,482 | 33 |
| Freeport McMoRan Miami Inc | 1 | 150 | 26 | $3,948 | 23 |
| Henrietta Mine, LLC | 1 | 3 | 25 | $7,589 | 0 |
| Carlota Copper Company | 1 | 63 | 21 | $3,631 | 2 |
| Gunnison Copper | 1 | 42 | 18 | $2,718 | 3 |
| Vulture Peak Holding LLC | 1 | 10 | 16 | $2,345 | 0 |
| Bonanza Explorations, Inc. | 1 | 4 | 9 | $1,542 | 0 |
| Copper World | 1 | 52 | 9 | $1,865 | 11 |
| Cyprus Tohono Corp | 1 | 16 | 9 | $1,200 | 0 |
| GoodMark Capital Group Inc. | 1 | 4 | 5 | $764 | 0 |
| Phelps Dodge Corp | 1 | 10 | 1 | $147 | 1 |
Operators with the most citations in Arizona
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Freeport-McMoRan Morenci Inc. | 1 | 5,870 | 1,087 | $1,230,992 | 784 |
| Asarco LLC, a Delaware Limited Liability Company | 4 | 1,394 | 770 | $689,527 | 147 |
| Pinto Valley Mining Corp. | 1 | 728 | 417 | $501,229 | 80 |
| Freeport-McMoRan Bagdad Inc | 1 | 1,386 | 315 | $323,030 | 157 |
| Freeport-McMoRan Safford Inc | 1 | 1,071 | 244 | $170,437 | 162 |
| Gold Road Mining Corp | 1 | 58 | 64 | $9,379 | 1 |
| Golden Vertex Corp | 1 | 71 | 62 | $16,951 | 9 |
| Silver Bullet Holdings | 2 | 8 | 49 | $18,474 | 0 |
| Resolution Copper Mining LLC | 1 | 180 | 49 | $15,744 | 5 |
| Efr Arizona Strip LLC | 1 | 32 | 42 | $6,637 | 7 |
| Origin Mining Company, LLC. | 1 | 204 | 41 | $14,755 | 18 |
| South32 Hermosa Inc. | 1 | 0 | 34 | $7,482 | 33 |
| Freeport McMoRan Miami Inc | 1 | 150 | 26 | $3,948 | 23 |
| Henrietta Mine, LLC | 1 | 3 | 25 | $7,589 | 0 |
| Carlota Copper Company | 1 | 63 | 21 | $3,631 | 2 |
| Gunnison Copper | 1 | 42 | 18 | $2,718 | 3 |
| Vulture Peak Holding LLC | 1 | 10 | 16 | $2,345 | 0 |
| Bonanza Explorations, Inc. | 1 | 4 | 9 | $1,542 | 0 |
| Copper World | 1 | 52 | 9 | $1,865 | 11 |
| Cyprus Tohono Corp | 1 | 16 | 9 | $1,200 | 0 |
| Rango Inc. | 2 | 2 | 8 | $1,066 | 1 |
| GoodMark Capital Group Inc. | 1 | 4 | 5 | $764 | 0 |
| Phelps Dodge Corp | 1 | 10 | 1 | $147 | 1 |
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 |
|---|---|---|---|---|---|
| Freeport-McMoRan Morenci Inc. | Freeport-McMoRan Morenci Inc. | Greenlee County, AZ | Copper ore | 5,870 | 1,087 |
| Pinto Valley Mine | Pinto Valley Mining Corp. | Gila County, AZ | Copper ore | 728 | 417 |
| Ray Mine | Asarco LLC, a Delaware Limited Liability Company | Gila County, AZ | Copper ore | 630 | 349 |
| Freeport-McMoRan Bagdad Inc | Freeport-McMoRan Bagdad Inc | Yavapai County, AZ | Copper ore | 1,386 | 315 |
| Mission/san Xavier/eisenhower | Asarco LLC, a Delaware Limited Liability Company | Pima County, AZ | Copper ore | 447 | 256 |
| Freeport-McMoRan Safford Inc | Freeport-McMoRan Safford Inc | Graham County, AZ | Copper ore | 1,071 | 244 |
| Hayden Concentrator | Asarco LLC, a Delaware Limited Liability Company | Gila County, AZ | Copper ore | 135 | 127 |
| Gold Road Mine | Gold Road Mining Corp | Mohave County, AZ | Gold ore | 58 | 64 |
| Moss Mine | Golden Vertex Corp | Mohave County, AZ | Gold ore | 71 | 62 |
| Resolution Mine | Resolution Copper Mining LLC | Pinal County, AZ | Copper ore | 180 | 49 |
| Pinyon Plain Mine | Efr Arizona Strip LLC | Coconino County, AZ | Uranium ore | 32 | 42 |
| Mineral Park | Origin Mining Company, LLC. | Mohave County, AZ | Copper ore | 204 | 41 |
| Silver Bell Mining LLC | Asarco LLC, a Delaware Limited Liability Company | Pima County, AZ | Copper ore | 182 | 38 |
| Hermosa Mine | South32 Hermosa Inc. | Santa Cruz County, AZ | Lead-zinc ore | 0 | 34 |
| Freeport McMoRan Miami Inc | Freeport McMoRan Miami Inc | Gila County, AZ | Copper ore | 150 | 26 |
| Globe Mill | Silver Bullet Holdings | Gila County, AZ | Silver ore | 4 | 26 |
| Henrietta Mine | Henrietta Mine, LLC | Yavapai County, AZ | Gold ore | 3 | 25 |
| Champion Mine | Silver Bullet Holdings | Gila County, AZ | Silver ore | 4 | 23 |
| Carlota Copper Company | Carlota Copper Company | Gila County, AZ | Copper ore | 63 | 21 |
| Gunnison & Johnson Camp Mines | Gunnison Copper | Cochise County, AZ | Copper ore | 42 | 18 |
| Vulture Mine | Vulture Peak Holding LLC | Maricopa County, AZ | Gold ore | 10 | 16 |
| Copper World LLC | Copper World | Pima County, AZ | Copper ore | 52 | 9 |
| Cyprus Tohono Corporation | Cyprus Tohono Corp | Pinal County, AZ | Copper ore | 16 | 9 |
| Copperstone Mine | Bonanza Explorations, Inc. | La Paz County, AZ | Gold ore | 4 | 9 |
| Portable Crusher No. 1 | Rango Inc. | La Paz County, AZ | Iron ore | 2 | 6 |
| Fraguita Mill Site | GoodMark Capital Group Inc. | Pima County, AZ | Gold ore | 4 | 5 |
| Portable Crusher No. 2 | Rango Inc. | Pinal County, AZ | Copper ore | 0 | 2 |
| Copper Queen Branch | Phelps Dodge Corp | Cochise County, AZ | Copper ore | 10 | 1 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Copper ore | 18 | 56.2% |
| Gold ore | 8 | 25% |
| Silver ore | 2 | 6.2% |
| Misc. metal ore | 1 | 3.1% |
| Uranium ore | 1 | 3.1% |
| Iron ore | 1 | 3.1% |
| Lead-zinc ore | 1 | 3.1% |
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 | 528 | 86 | $448,585 | 344 |
| 2023 | 565 | 95 | $372,321 | 371 |
| 2024 | 894 | 130 | $1,015,012 | 317 |
| 2025 | 766 | 102 | $906,791 | 305 |
| 2026 | 958 | 147 | $744,664 | 269 |
Standards cited most at metal ore mines in Arizona
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 56.20003 | Surface metal and nonmetal mines | 438 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 333 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 261 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 167 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 141 |
| 30 CFR 47.41 | Hazard communication | 119 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 118 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 107 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 104 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 100 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 77 |
| 30 CFR 56.4102 | Surface metal and nonmetal mines | 75 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 71 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 62 |
| 30 CFR 56.4104 | Surface metal and nonmetal mines | 61 |
Injury and illness cases at metal ore mines in Arizona
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 2 |
| Permanent disability | 11 |
| Days away from work or restricted activity | 1,149 |
| No lost time, or an occupational illness | 444 |
What the accident reports at metal ore mines in Arizona describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 488 |
| Slip or fall of person | 354 |
| Powered haulage | 212 |
| Machinery | 195 |
| Handtools (nonpowered) | 123 |
| Other | 88 |
| Disorders (physical agents) | 35 |
| Stepping or kneeling on object | 34 |
| Disorders (repeated trauma) | 19 |
| Striking or bumping | 16 |
Equipment named in accident reports at metal ore mines in Arizona
| Equipment | Reports |
|---|---|
| Ore haulage trucks - off highway trucks | 227 |
| Hand tools (not powered) | 131 |
| Hand tools (powered) | 57 |
| Trucks | 46 |
| Shovel | 44 |
| Bulldozer | 43 |
| Mancar | 33 |
| Carriage-mounted drills | 28 |
| Front-end loader | 26 |
| Forklift | 20 |
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.