Data / Mines / Arizona / Cochise County
Mines in Cochise County, Arizona: 26 open mines
MSHA lists 26 open mines in Cochise County, Arizona, run by 22 operators and employing 139 people. Since January 1, 2022 its inspectors issued 181 citations and orders there with $34,910 in proposed penalties, and operators reported 6 injury or illness cases. The operators with the most open mines are Maddux & Sons Inc; Willcox Rock & Sand Inc; Spencer Construction. Data from MSHA, November 6, 2026.
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- Open mines
- 26
- Operators
- 22
- Employees
- 139
- Active
- 12
- Intermittent
- 8
- Temporarily Idled
- 5
- NonProducing
- 1
- Mines run by individuals, counted and not listed
- 1
- Citations and orders since January 1, 2022
- 181
- Significant and substantial
- 22 (12.2%)
- Closure orders
- 5
- High negligence or reckless
- 16
- Proposed penalties
- $34,910
- Amount paid so far
- $30,858
- Inspections
- 202
- Inspector hours on site
- 844
- Citations per inspection
- 0.90 (all mines 2.30)
- Accident reports
- 6
- Injury and illness cases
- 6
- Fatalities
- 0
- Latest MSHA record
- October 27, 2026
Operators with the most open mines in Cochise County, 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 |
|---|---|---|---|---|---|
| Maddux & Sons Inc | 3 | 12 | 13 | $1,829 | 0 |
| Willcox Rock & Sand Inc | 2 | 7 | 18 | $3,679 | 0 |
| Spencer Construction | 2 | 0 | 3 | $441 | 0 |
| Fnf Construction Inc | 1 | 12 | 35 | $11,479 | 1 |
| Gunnison Copper | 1 | 42 | 18 | $2,718 | 3 |
| Klump Materials | 1 | 5 | 17 | $2,385 | 0 |
| Empire Homes Inc | 1 | 3 | 16 | $1,752 | 0 |
| Fisher Sand & Gravel Company | 1 | 0 | 8 | $1,861 | 0 |
| Texas Canyon Rock & Sand | 1 | 3 | 8 | $1,222 | 0 |
| Kramme Construction LLC | 1 | 0 | 6 | $886 | 0 |
| Sierra Mining and Crushing LLC | 1 | 5 | 6 | $923 | 0 |
| Sun Cor Underground Inc. | 1 | 3 | 6 | $882 | 0 |
| Aztec Minerals America | 1 | 3 | 5 | $735 | 0 |
| Cemex Construction Materials South LLC | 1 | 4 | 5 | $1,356 | 0 |
| Superstition Crushing L.L.C. | 1 | 4 | 4 | $841 | 0 |
| Hayhook, LLC | 1 | 2 | 3 | $453 | 0 |
| James Hamilton Construction Company | 1 | 9 | 1 | $151 | 1 |
| Ke&g Construction | 1 | 0 | 1 | $151 | 0 |
| Phelps Dodge Corp | 1 | 10 | 1 | $147 | 1 |
| Uop LLC | 1 | 9 | 1 | $151 | 0 |
| Martin Marietta Materials, Inc. | 1 | 2 | 0 | $0 | 0 |
Operators with the most citations in Cochise County, 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 |
|---|---|---|---|---|---|
| Fnf Construction Inc | 1 | 12 | 35 | $11,479 | 1 |
| Willcox Rock & Sand Inc | 2 | 7 | 18 | $3,679 | 0 |
| Gunnison Copper | 1 | 42 | 18 | $2,718 | 3 |
| Klump Materials | 1 | 5 | 17 | $2,385 | 0 |
| Empire Homes Inc | 1 | 3 | 16 | $1,752 | 0 |
| Maddux & Sons Inc | 3 | 12 | 13 | $1,829 | 0 |
| Fisher Sand & Gravel Company | 1 | 0 | 8 | $1,861 | 0 |
| Texas Canyon Rock & Sand | 1 | 3 | 8 | $1,222 | 0 |
| Kramme Construction LLC | 1 | 0 | 6 | $886 | 0 |
| Sierra Mining and Crushing LLC | 1 | 5 | 6 | $923 | 0 |
| Sun Cor Underground Inc. | 1 | 3 | 6 | $882 | 0 |
| Aztec Minerals America | 1 | 3 | 5 | $735 | 0 |
| Cemex Construction Materials South LLC | 1 | 4 | 5 | $1,356 | 0 |
| Superstition Crushing L.L.C. | 1 | 4 | 4 | $841 | 0 |
| Spencer Construction | 2 | 0 | 3 | $441 | 0 |
| Hayhook, LLC | 1 | 2 | 3 | $453 | 0 |
| James Hamilton Construction Company | 1 | 9 | 1 | $151 | 1 |
| Ke&g Construction | 1 | 0 | 1 | $151 | 0 |
| Phelps Dodge Corp | 1 | 10 | 1 | $147 | 1 |
| Uop LLC | 1 | 9 | 1 | $151 | 0 |
| Martin Marietta Materials, Inc. | 1 | 2 | 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 |
|---|---|---|---|---|---|
| FNF Crushing 4 | Fnf Construction Inc | Cochise County, AZ | Construction sand and gravel | 12 | 35 |
| Gunnison & Johnson Camp Mines | Gunnison Copper | Cochise County, AZ | Copper ore | 42 | 18 |
| Klump Pit | Klump Materials | Cochise County, AZ | Construction sand and gravel | 5 | 17 |
| Babacomari Ranch Plant | Empire Homes Inc | Cochise County, AZ | Construction sand and gravel | 3 | 16 |
| Wash Plant | Willcox Rock & Sand Inc | Cochise County, AZ | Sand, industrial | 4 | 9 |
| Outerspace Pit | Willcox Rock & Sand Inc | Cochise County, AZ | Crushed, broken stone | 3 | 9 |
| Texas Canyon Rock & Sand | Texas Canyon Rock & Sand | Cochise County, AZ | Construction sand and gravel | 3 | 8 |
| Fisher Industries Plant 2 | Fisher Sand & Gravel Company | Cochise County, AZ | Construction sand and gravel | 0 | 8 |
| Hayhook LLC DBA Hayhook Sand and Gravel | Sierra Mining and Crushing LLC | Cochise County, AZ | Crushed, broken stone | 5 | 6 |
| Portec 48cone Crusher | Maddux & Sons Inc | Cochise County, AZ | Crushed, broken stone | 4 | 6 |
| Shelton Pit | Sun Cor Underground Inc. | Cochise County, AZ | Construction sand and gravel | 3 | 6 |
| Hayhook Plant | Kramme Construction LLC | Cochise County, AZ | Construction sand and gravel | 0 | 6 |
| Cemex-Sierra Vista | Cemex Construction Materials South LLC | Cochise County, AZ | Construction sand and gravel | 4 | 5 |
| Emerald Pit | Aztec Minerals America | Cochise County, AZ | Construction sand and gravel | 3 | 5 |
| Mine #5 | Superstition Crushing L.L.C. | Cochise County, AZ | Crushed, broken stone | 4 | 4 |
| Wash Plant | Maddux & Sons Inc | Cochise County, AZ | Construction sand and gravel | 3 | 4 |
| CP2 | Maddux & Sons Inc | Cochise County, AZ | Construction sand and gravel | 5 | 3 |
| Hayhook Sand & Gravel | Hayhook, LLC | Cochise County, AZ | Construction sand and gravel | 2 | 3 |
| Spencer Materials | Spencer Construction | Cochise County, AZ | Construction sand and gravel | 0 | 2 |
| Copper Queen Branch | Phelps Dodge Corp | Cochise County, AZ | Copper ore | 10 | 1 |
| Bowie Chabazite Operations | Uop LLC | Cochise County, AZ | Zeolites | 9 | 1 |
| Portable #1 | James Hamilton Construction Company | Cochise County, AZ | Sand, common | 9 | 1 |
| Klump Pit | Spencer Construction | Cochise County, AZ | Construction sand and gravel | 0 | 1 |
| Tombstone Gold and Silver | Ke&g Construction | Cochise County, AZ | Construction sand and gravel | 0 | 1 |
| Douglas Plant | Martin Marietta Materials, Inc. | Cochise County, AZ | Lime | 2 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 15 | 57.7% |
| Crushed, broken stone | 4 | 15.4% |
| Copper ore | 2 | 7.7% |
| Lime | 1 | 3.8% |
| Zeolites | 1 | 3.8% |
| Sand, industrial | 1 | 3.8% |
| Sand, common | 1 | 3.8% |
| Dimension marble | 1 | 3.8% |
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 | 11 | 3 | $3,444 | 1 |
| 2023 | 28 | 6 | $4,394 | 1 |
| 2024 | 43 | 4 | $6,592 | 0 |
| 2025 | 39 | 3 | $12,141 | 0 |
| 2026 | 60 | 6 | $8,339 | 4 |
Standards cited most at mines in Cochise County, 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 56.14107 | Surface metal and nonmetal mines | 27 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 20 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 5 |
| 30 CFR 47.41 | Hazard communication | 4 |
| 30 CFR 56.11012 | Surface metal and nonmetal mines | 3 |
| 30 CFR 47.44 | Hazard communication | 3 |
| 30 CFR 56.4101 | Surface metal and nonmetal mines | 3 |
| 30 CFR 46.8 | Training at sand, gravel and surface stone mines | 3 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 3 |
Injury and illness cases at mines in Cochise County, Arizona
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 4 |
| No lost time, or an occupational illness | 2 |
What the accident reports at mines in Cochise County, Arizona describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 3 |
| Machinery | 2 |
| Handling of materials | 1 |
Equipment named in accident reports at mines in Cochise County, Arizona
| Equipment | Reports |
|---|---|
| Carriage-mounted drills | 1 |
| Screen | 1 |
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.