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MSHA mine register by county

Mines in Clayton County, Iowa

Clayton County, Iowa has 46 mines on MSHA's register: 1 active, 7 intermittent, 38 abandoned. 1 miner has died and 246 accidents have been reported at these mines between 1993 and 2025. Inspectors have issued 1,812 citations.

Every mine MSHA has registered in Clayton 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 Clayton County →

Mines on register
46
Active
1
Fatalities on record
1
Citations issued
1,812
2 underground · 44 surface · 0 facilities 0 coal · 46 metal and non-metal 7 intermittent 38 abandoned 246 reported accidents, 1993–2025
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.
Clayton County, Iowa · Population 17,069
1.4%
Mining share of county employment
$62,326
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
Kuhlman Construction Company 18 0 0
Roverud Construction Inc 13 0 0
C.J. MOYNA & SONS, LLC. 5 0 0
Pattison Company, LLC 1 1 1
BARD Materials 1 0 0
Bruening Rock Products Inc 1 0 0
Eno Sand & Gravel Company 1 0 0
Harold Hartman 1 0 0
L J Crushing 1 0 0
Martin Marietta Aggregates 1 0 0
Mines in Clayton County46 on register
  1. Pattison Company, LLC
    Underground metal/non-metal · Pattison Company, LLC · MSHA ID 1302297
    Active
  2. Portable Sand 2
    Surface metal/non-metal · BARD Materials · MSHA ID 1302132
    Intermittent
  3. PORTABLE PLANT #2
    Surface metal/non-metal · C.J. MOYNA & SONS LLC · MSHA ID 1302268
    Intermittent
  4. Portable Wash Plant
    Surface metal/non-metal · C J Moyna & Sons LLC. · MSHA ID 1302353
    Intermittent
  5. PORTABLE GRIZZLY
    Surface metal/non-metal · C J Moyna & Sons LLC. · MSHA ID 1302429
    Intermittent
  6. PORTABLE GRIZZLY #2
    Surface metal/non-metal · C J MOYNA & SONS LLC · MSHA ID 1302373
    Intermittent
  7. Mielke's Quarry
    Surface metal/non-metal · L J Crushing · MSHA ID 1302508
    Intermittent
  8. PORTABLE TRACK CRUSHER #5
    Surface metal/non-metal · C.J. MOYNA & SONS, LLC. · MSHA ID 1302424
    Abandoned
  9. Recker Rock Products, LLC
    Surface metal/non-metal · Recker Rock Products, LLC · MSHA ID 1302515
    Intermittent
  10. (Johnson) St Olaf Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1301939
    Abandoned
  11. Andregg Quarry
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300078
    Abandoned
  12. Bente Pit
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1301108
    Abandoned
  13. Blume Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1300806
    Abandoned
  14. Boege Quarry
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300082
    Abandoned
  15. Burrack Quarry
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1301157
    Abandoned
  16. Clayton Plant
    Underground metal/non-metal · Martin Marietta Aggregates · MSHA ID 1300615
    Abandoned
  17. Doerring Quarry
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300454
    Abandoned
  18. Eberhardt Quarry
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300453
    Abandoned
  19. Elkader Sand Pit
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300682
    Abandoned
  20. Essman Island Sand Pit
    Surface metal/non-metal · Swales Concrete Inc · MSHA ID 1301357
    Abandoned
  21. Fassbinder
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300452
    Abandoned
  22. Giselson Quarry
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300458
    Abandoned
  23. Harold Hartman Quarry
    Surface metal/non-metal · Harold Hartman · MSHA ID 1300050
    Abandoned
  24. Hiline Quarry
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300079
    Abandoned
  25. Johnson Quarry
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300301
    Abandoned
  26. Johnson Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1301944
    Abandoned
  27. Kregel Quarry
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1301112
    Abandoned
  28. Kruse Quarry
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1301837
    Abandoned
  29. Larson Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1301746
    Abandoned
  30. Mcgregor Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1301270
    Abandoned
  31. Mielke Quarry
    Surface metal/non-metal · Bruening Rock Products Inc · MSHA ID 1301762
    Abandoned
  32. Morarend Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1300858
    Abandoned
  33. Osterdock Quarry
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300302
    Abandoned
  34. Pattison Brothers Incorporated
    Surface metal/non-metal · Pattison Brothers Inc · MSHA ID 1302197
    Abandoned
  35. PORTABLE-NO. 6
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1302186
    Abandoned
  36. Schmidt
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300080
    Abandoned
  37. Smith Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1302055
    Abandoned
  38. Sny Magil Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1301954
    Abandoned
  39. Strawberry Point Pit
    Surface metal/non-metal · Eno Sand & Gravel Company · MSHA ID 1301674
    Abandoned
  40. Thompson Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1301700
    Abandoned
  41. Thurn Sand Pit
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1301740
    Abandoned
  42. Tucker Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1301792
    Abandoned
  43. Twin Rocks Quarry Or Twin Rocks
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300456
    Abandoned
  44. Watson Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1300851
    Abandoned
  45. Wellman Quarry Or Wellman
    Surface metal/non-metal · Kuhlman Construction Company · MSHA ID 1300455
    Abandoned
  46. Zurcher Quarry
    Surface metal/non-metal · Roverud Construction Inc · MSHA ID 1301435
    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.