Data / Mines / Arizona

Mines in Arizona: 343 open mines and MSHA citations

MSHA lists 343 open mines in Arizona, run by 178 operators and employing 15,005 people. Since January 1, 2022 its inspectors issued 7,700 citations and orders there with $5,105,214 in proposed penalties, and operators reported 1,847 injury or illness cases, 2 of them fatal. The operators with the most open mines are Superstition Crushing L.L.C.; Cemex Construction Materials South LLC; Rock Pros USA. Data from MSHA, November 6, 2026.

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Open mines

343

Operators

178

Employees

15,005

Active

170

Intermittent

99

Temporarily Idled

46

New Mine

21

NonProducing

7

Mines run by individuals, counted and not listed

37

Citations and orders since January 1, 2022

7,700

Significant and substantial

1,351 (17.5%)

Closure orders

212

High negligence or reckless

709

Proposed penalties

$5,105,214

Amount paid so far

$3,842,801

Inspections

3,384

Inspector hours on site

36,218

Citations per inspection

2.28 (all mines 2.30)

Accident reports

1,873

Injury and illness cases

1,847

Fatalities

2

Latest MSHA record

November 4, 2026

Operators with the most open mines in Arizona

Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.

Operators with the most citations in Arizona

Citations and orders issued since January 1, 2022 at their open mines here.

Mines with the most citations

Open mines, ranked by citations and orders since January 1, 2022.

Counties

Mines by kind

Main commodities

Citations and injury cases by year

Calendar years since 2022; 2026 runs to the date of the MSHA files.

Standards cited most at mines in Arizona

Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.

Injury and illness cases at mines in Arizona

Accident reports by degree of injury, as the operator reported them to MSHA.

What the accident reports at mines in Arizona describe

Accident classification, as MSHA codes the circumstances that contributed most directly.

Equipment named in accident reports at mines in Arizona

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.