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MSHA mine register by county

Mines in Madison County, Iowa

Madison County, Iowa has 20 mines on MSHA's register: 3 active, 1 intermittent, 16 abandoned. 1 miner has died and 45 accidents have been reported at these mines between 1983 and 2025. Inspectors have issued 377 citations.

Every mine MSHA has registered in Madison 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 Madison County →

Mines on register
20
Active
3
Fatalities on record
1
Citations issued
377
0 underground · 20 surface · 0 facilities 0 coal · 20 metal and non-metal 1 intermittent 16 abandoned 45 reported accidents, 1983–2025
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.
Madison County, Iowa · Population 16,760
0.0%
Mining share of county employment
$89,542
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
Gendler Stone Products Company Inc 5 0 0
Martin Marietta Materials, Inc. 3 2 1
Martin Marietta-Construction Aggregates Division 3 0 0
Big Stones Quarry, Inc. 1 0 0
E I Sargent Quarries Inc 1 0 0
Grimes Asphalt & Paving Corp 1 0 0
Madison County Highway Department 1 0 0
Martin Marietta Aggregates 1 0 0
Monarch Cement Company 1 0 0
Peru Quarry Inc 1 1 0
Mines in Madison County20 on register
  1. Earlham Quarry
    Surface metal/non-metal · Martin Marietta Materials Inc. · MSHA ID 1302123
    Active
  2. Des Moines Portable #1
    Surface metal/non-metal · Martin Marietta Materials Inc. · MSHA ID 1300150
    Active
  3. Peru Quarry Inc
    Surface metal/non-metal · Peru Quarry Inc · MSHA ID 1302398
    Active
  4. EARLHAM GRADING CREW
    Surface metal/non-metal · Martin Marietta Materials, Inc. · MSHA ID 1301778
    Intermittent
  5. Early Chapel Quarry And Mill
    Surface metal/non-metal · Gendler Stone Products Company Inc · MSHA ID 1300036
    Abandoned
  6. Earlham Quarry
    Surface metal/non-metal · Monarch Cement Company · MSHA ID 1300113
    Abandoned
  7. Earlham Quarry And Mill
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 1300123
    Abandoned
  8. Peru Iowa
    Surface metal/non-metal · Big Stones Quarry, Inc. · MSHA ID 1302334
    Abandoned
  9. Winterset Quarry And Mill
    Surface metal/non-metal · Martin Marietta-Construction Aggregates Division · MSHA ID 1300202
    Abandoned
  10. 92 Quarry
    Surface metal/non-metal · Schildberg Construction Company Inc · MSHA ID 1300211
    Abandoned
  11. E Winterset Quarry
    Surface metal/non-metal · Martin Marietta-Construction Aggregates Division · MSHA ID 1300164
    Abandoned
  12. Eyerly Quarry
    Surface metal/non-metal · Gendler Stone Products Company Inc · MSHA ID 1301767
    Abandoned
  13. Gardner Quarry & Mill
    Surface metal/non-metal · Gendler Stone Products Company Inc · MSHA ID 1301690
    Abandoned
  14. Gendler Shop
    Surface metal/non-metal · Gendler Stone Products Company Inc · MSHA ID 1301347
    Abandoned
  15. Grimes Asphalt & Paving Corporation Quar
    Surface metal/non-metal · Grimes Asphalt & Paving Corp · MSHA ID 1302156
    Abandoned
  16. Grulke Quarry & Mill
    Surface metal/non-metal · Madison County Highway Department · MSHA ID 1300110
    Abandoned
  17. Peru Quarry
    Surface metal/non-metal · Martin Marietta-Construction Aggregates Division · MSHA ID 1301612
    Abandoned
  18. Peru Quarry & Mill
    Surface metal/non-metal · E I Sargent Quarries Inc · MSHA ID 1300201
    Abandoned
  19. Ramsey Pit
    Surface metal/non-metal · R & A Sand & Concrete · MSHA ID 1301929
    Abandoned
  20. Winterset Quarry
    Surface metal/non-metal · Gendler Stone Products Company Inc · MSHA ID 1300035
    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 IowaAll 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.