Mining Incidents
MSHA mine register by county

Mines in Mercer County, Missouri

Mercer County, Missouri has 12 mines on MSHA's register: 12 abandoned. 3 accidents have been reported at these mines between 1987 and 2004. Inspectors have issued 38 citations.

Every mine MSHA has registered in Mercer County, working or not, with the accident, fatality and citation record each one carries on this site. Active mines are listed first, then the rest by the weight of their record.

Abandoned and historical mine features in Mercer County →

Mines on register
12
Active
0
Fatalities on record
0
Citations issued
38
0 underground · 12 surface · 0 facilities 0 coal · 12 metal and non-metal 12 abandoned 3 reported accidents, 1987–2004
Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Mercer County, Missouri · Population 3,501
0.0%
Mining share of county employment
$60,357
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
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MSHA-registered mine, any status

Mines plot only where MSHA holds a surveyed coordinate for the site; mines the agency locates to a town, county or state centroid are in the counts and the list above but not drawn. Click a point for the mine's status and record.

Operators with the most mines herecurrent operator of record
Operator Mines Active Fatalities
Martin Marietta Aggregates 4 0 0
Martin Marietta-Construction Aggregates Division 3 0 0
Clay County Highway Department 1 0 0
Colonial Limestone Inc 1 0 0
Gondringer Quarries Inc 1 0 0
Wilcox Quarries 1 0 0
Mines in Mercer County12 on register
  1. Site 4
    Surface metal/non-metal · Colonial Limestone Inc · MSHA ID 2302178
    Abandoned
  2. Plant #2
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 2301938
    Abandoned
  3. Clay County Quarry
    Surface metal/non-metal · Clay County Highway Department · MSHA ID 2301734
    Abandoned
  4. Mallinson Quarry
    Surface metal/non-metal · Long Excavating & Construction L.L.C. · MSHA ID 2302570
    Abandoned
  5. Mercer Quarry
    Surface metal/non-metal · Martin Marietta-Construction Aggregates Division · MSHA ID 2300291
    Abandoned
  6. Plant #1
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 2301937
    Abandoned
  7. Portable Plant #10
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 2301953
    Abandoned
  8. Princeton
    Surface metal/non-metal · Martin Marietta-Construction Aggregates Division · MSHA ID 2301086
    Abandoned
  9. Princeton Quarry
    Surface metal/non-metal · Gondringer Quarries Inc · MSHA ID 2301544
    Abandoned
  10. Princeton Sand Pit
    Surface metal/non-metal · Martin Marietta-Construction Aggregates Division · MSHA ID 2301569
    Abandoned
  11. Stripping Crew
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 2301936
    Abandoned
  12. Wilcox Princeton Quarry And Mill
    Surface metal/non-metal · Wilcox Quarries · MSHA ID 2300230
    Abandoned

Status, type and operator are as reported to MSHA. Fatality and accident counts are MSHA's reportable accident records for the mine; citations are inspector-issued violations on record. Each mine's own page carries the full detail.

Other counties in MissouriAll counties →
How to read these numbers

The register is MSHA's Mine Data Retrieval System: every operation ever assigned a mine ID, including ones abandoned decades ago, so the count is a history of mining in the county, not a count of working mines. A mine's county is the one its operator reported to MSHA. Fatality and accident counts start with MSHA's reportable-accident records (1983 onward); citation counts are inspector-issued violations on record. We are an independent research tool, not MSHA.