Data / Mines / Missouri / Iron Mountain Quarry
Iron Mountain Quarry: 26 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Iron Mountain Quarry is an active crushed, broken traprock surface mine in St Francois County, Missouri, operated by Martin Marietta Materials, Inc. with 31 employees on MSHA's record (mine ID 2300210). Since January 1, 2022 MSHA inspectors issued 26 citations and orders there with $3,909 in proposed penalties, and 6 accident reports were filed there, with 6 injury or illness cases.
The request: Watch Iron Mountain Quarry (MSHA mine ID 2300210) in St Francois County, Missouri: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2300210
- Status
- Active since April 9, 2010
- Main commodity
- Crushed, broken traprock
- Mine type
- Surface
- County
- St Francois County, Missouri
- Nearest town
- Iron Mountain
- Operator
- Martin Marietta Materials, Inc.
- Parent company
- Martin Marietta Materials Inc
- Employees
- 31
- MSHA field office
- Rolla MO Field Office
- Citations and orders since January 1, 2022
- 26
- Significant and substantial
- 1 (3.8%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $3,909
- Amount paid so far
- $3,305
- Inspections
- 15
- Inspector hours on site
- 170
- Citations per inspection
- 1.73 (all mines 2.30)
- Accident reports
- 6
- Injury and illness cases
- 6
- Fatalities
- 0
- Latest MSHA record
- May 13, 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 |
|---|---|---|---|---|
| 2022 | 2 | 0 | $266 | 0 |
| 2023 | 8 | 1 | $1,164 | 0 |
| 2024 | 3 | 0 | $441 | 2 |
| 2025 | 7 | 0 | $1,057 | 3 |
| 2026 | 6 | 0 | $981 | 1 |
Standards cited most at Iron Mountain Quarry
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 56.14100 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12006 | Surface metal and nonmetal mines | 1 |
| 30 CFR 47.44 | Hazard communication | 1 |
| 30 CFR 56.13001 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14109 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4200 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Iron Mountain Quarry
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 Iron Mountain Quarry describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 2 |
| Handtools (nonpowered) | 2 |
| Other | 1 |
| Powered haulage | 1 |
Equipment named in accident reports at Iron Mountain Quarry
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 2 |
| Carriage-mounted drills | 1 |
| Front-end loader | 1 |
Other open mines in St Francois County, Missouri
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| MLC, Bonne Terre | MLC | St Francois County, MO | Lime | 40 | 34 |
| Elvins Quarry & Mill | Lead Belt Materials Company Inc | St Francois County, MO | Crushed, broken limestone | 8 | 25 |
| VLC Aggregates Inc. | VLC Aggregates Inc. | St Francois County, MO | Crushed, broken limestone | 4 | 15 |
| Leadwood Plant | Morgan & White Quarries Inc | St Francois County, MO | Crushed, broken limestone | 4 | 12 |
| Base Rock Bonne Terre | Base Rock Minerals | St Francois County, MO | Crushed, broken limestone | 8 | 10 |
| ST Francois Quarry (CS54) | Central Stone Company | St Francois County, MO | Crushed, broken limestone | 10 | 9 |
| Butler Hill Granite (CS58) | Central Stone Company | St Francois County, MO | Dimension granite | 8 | 5 |
| Iko Bismarck | Bismarck Granules Inc. | St Francois County, MO | Dimension granite | 4 | 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.