Data / Mines / Common clays

Common clays mines in the US: 98 open mines

MSHA lists 98 open common clays mines in the US, run by 69 operators and employing 2,457 people. Since January 1, 2022 its inspectors issued 1,598 citations and orders there with $894,037 in proposed penalties, and operators reported 175 injury or illness cases. The operators with the most open mines are General Shale Brick, Inc.; Acme Brick Company; Kentucky Tennessee Clay Company. Data from MSHA, November 6, 2026.

SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.

Open mines

98

Operators

69

Employees

2,457

Active

70

Intermittent

27

Temporarily Idled

1

Mines run by individuals, counted and not listed

2

Citations and orders since January 1, 2022

1,598

Significant and substantial

247 (15.5%)

Closure orders

23

High negligence or reckless

115

Proposed penalties

$894,037

Amount paid so far

$864,272

Inspections

1,104

Inspector hours on site

9,754

Citations per inspection

1.45 (all mines 2.30)

Accident reports

178

Injury and illness cases

175

Fatalities

0

Latest MSHA record

November 2, 2026

Operators with the most open mines

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

Operators with the most citations

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.

States

Citations and injury cases by year

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

Standards cited most at common clays mines

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 common clays mines

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

What the accident reports at common clays mines describe

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

Equipment named in accident reports at common clays mines

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.