Data / Mines / Arizona / Copperstone Mine
Copperstone Mine, La Paz County, Arizona: 9 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Copperstone Mine is a nonproducing gold ore underground mine in La Paz County, Arizona, operated by Bonanza Explorations, Inc. with 4 employees on MSHA's record (mine ID 0203000). Since January 1, 2022 MSHA inspectors issued 9 citations and orders there with $1,542 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Copperstone Mine (MSHA mine ID 0203000) in La Paz County, Arizona: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0203000
- Status
- NonProducing since December 21, 2016
- Main commodity
- Gold ore
- Mine type
- Underground
- County
- La Paz County, Arizona
- Nearest town
- Quartzite
- Operator
- Bonanza Explorations, Inc.
- Parent company
- Mining Americas Inc
- Employees
- 4
- MSHA field office
- Mesa North AZ Field Office
- Citations and orders since January 1, 2022
- 9
- Significant and substantial
- 1 (11.1%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $1,542
- Amount paid so far
- $1,511
- Inspections
- 23
- Inspector hours on site
- 129
- Citations per inspection
- 0.39 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- October 14, 2026
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 |
|---|---|---|---|---|
| 2023 | 2 | 1 | $489 | 0 |
| 2024 | 1 | 0 | $147 | 0 |
| 2025 | 6 | 0 | $906 | 0 |
Standards cited most at Copperstone Mine
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 57.15001 | Underground metal and nonmetal mines | 2 |
| 30 CFR 57.12018 | Underground metal and nonmetal mines | 1 |
| 30 CFR 57.12004 | Underground metal and nonmetal mines | 1 |
| 30 CFR 57.12040 | Underground metal and nonmetal mines | 1 |
| 30 CFR 57.14115 | Underground metal and nonmetal mines | 1 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 1 |
| 30 CFR 57.3200 | Underground metal and nonmetal mines | 1 |
| 30 CFR 50.10 | Reporting of accidents, injuries and illnesses | 1 |
Other open mines in La Paz County, Arizona
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Security Pit | Colorado River Sand and Rock | La Paz County, AZ | Construction sand and gravel | 4 | 39 |
| Osborn Wash | Colorado River Sand and Rock | La Paz County, AZ | Construction sand and gravel | 2 | 34 |
| Vicksburg Pit | La Paz County Public Works | La Paz County, AZ | Construction sand and gravel | 0 | 8 |
| Boyer Gap | Rock Pros USA | La Paz County, AZ | Crushed, broken stone | 3 | 7 |
| Portable Crusher No. 1 | Rango Inc. | La Paz County, AZ | Iron ore | 2 | 6 |
| Portable Crushing & Screening | Pg&e LLC | La Paz County, AZ | Construction sand and gravel | 3 | 5 |
| Track #1 | Rock Pros USA | La Paz County, AZ | Sand, common | 0 | 4 |
| Plant 3 | Onyx Crushing AZ LLC | La Paz County, AZ | Construction sand and gravel | 4 | 2 |
| FNF Crushing 5 | Fnf Construction Inc | La Paz County, AZ | Construction sand and gravel | 0 | 2 |
| Lincoln Constructors Plant #1 | Lincoln Constructors | La Paz County, AZ | Construction sand and gravel | 0 | 0 |
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.