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MSHA mine register by county

Mines in Twin Falls County, Idaho

Twin Falls County, Idaho has 43 mines on MSHA's register: 43 abandoned. 1 miner has died and 41 accidents have been reported at these mines between 1985 and 2008. Inspectors have issued 528 citations.

Every mine MSHA has registered in Twin Falls 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 Twin Falls County →

Mines on register
43
Active
0
Fatalities on record
1
Citations issued
528
0 underground · 43 surface · 0 facilities 0 coal · 43 metal and non-metal 43 abandoned 41 reported accidents, 1985–2008
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.
Twin Falls County, Idaho · Population 92,121
0.3%
Mining share of county employment
$65,338
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
Tri-C Inc. 6 0 0
Northwest Crane Rigging & Transport Company 5 0 0
Beymer Paving Inc 2 0 0
Gordon Paving Company Inc. 2 0 0
Loughmiller Reclamation Llc 2 0 0
O-K Paving Inc 2 0 0
Twin Falls Construction Company Inc 2 0 0
Twin Falls Crushing, Inc. 1 0 1
Ash Grove Cement West Inc 1 0 0
Balanced Rock Sand & Gravel Inc 1 0 0
Mines in Twin Falls County43 on register
  1. Twin Falls Crushing P P
    Surface metal/non-metal · Twin Falls Crushing, Inc. · MSHA ID 1001460
    Abandoned
  2. Tri-C
    Surface metal/non-metal · Tri-C Inc · MSHA ID 1001665
    Abandoned
  3. Plant 3
    Surface metal/non-metal · Tri-C Inc. · MSHA ID 1002070
    Abandoned
  4. LJ Plant
    Surface metal/non-metal · Tri-C Inc · MSHA ID 1002038
    Abandoned
  5. 7470
    Surface metal/non-metal · Gordon Paving Company Inc. · MSHA ID 1001308
    Abandoned
  6. 7406
    Surface metal/non-metal · Gordon Paving Company Inc. · MSHA ID 1001691
    Abandoned
  7. Plant K
    Surface metal/non-metal · Tri-C Inc · MSHA ID 1001926
    Abandoned
  8. Hollister Pit
    Surface metal/non-metal · D. B. Trucking Inc · MSHA ID 1002016
    Abandoned
  9. Plant 1
    Surface metal/non-metal · Clark Rock & Gravel · MSHA ID 1002234
    Abandoned
  10. PORTABLE PLANT #1
    Surface metal/non-metal · O-K Paving Inc · MSHA ID 1001934
    Abandoned
  11. SOUTH FORK PIT
    Surface metal/non-metal · O-K Paving Inc · MSHA ID 1001922
    Abandoned
  12. PORTABLE PLANT #3
    Surface metal/non-metal · Tri-C Inc · MSHA ID 1001975
    Abandoned
  13. Addison Pit
    Surface metal/non-metal · Doug McCoy Construction Inc · MSHA ID 1002151
    Abandoned
  14. #24 Screener
    Surface metal/non-metal · Buhl Highway District · MSHA ID 1001927
    Abandoned
  15. TWIN FALLS PLANT
    Surface metal/non-metal · Monroc Inc · MSHA ID 1000639
    Abandoned
  16. PORTABLE PLANT # 1
    Surface metal/non-metal · Loughmiller Reclamation Llc · MSHA ID 1001992
    Abandoned
  17. Balanced Rock Sand & Gravel Inc
    Surface metal/non-metal · Balanced Rock Sand & Gravel Inc · MSHA ID 1002046
    Abandoned
  18. Portable #1
    Surface metal/non-metal · Mountain View Gravel · MSHA ID 1001968
    Abandoned
  19. Hansen Pit
    Surface metal/non-metal · Northwest Sand & Gravel Inc · MSHA ID 1002010
    Abandoned
  20. Plant #4
    Surface metal/non-metal · Tri-C Inc. · MSHA ID 1002077
    Abandoned
  21. Richfield Pit
    Surface metal/non-metal · Idaho Concrete Company · MSHA ID 1002055
    Abandoned
  22. Tri-Harder Farms
    Surface metal/non-metal · Tri-Harder Farms · MSHA ID 1002086
    Abandoned
  23. Champ Gray Pit
    Surface metal/non-metal · Northwest Crane Rigging & Transport Company · MSHA ID 1000953
    Abandoned
  24. Colonial Concrete Plant
    Surface metal/non-metal · Colonial Concrete Inc · MSHA ID 1000312
    Abandoned
  25. CRUSHER #1
    Surface metal/non-metal · Twin Falls Crane · MSHA ID 1001967
    Abandoned
  26. Crusher 2
    Surface metal/non-metal · Magic Valley Crushing & Excavation · MSHA ID 1002339
    Abandoned
  27. DALE ASLETT PORTABLE PLANT
    Surface metal/non-metal · Dale Aslett Sand & Gravel Inc · MSHA ID 1001883
    Abandoned
  28. Hansen Pit
    Surface metal/non-metal · Northwest Crane Rigging & Transport Company · MSHA ID 1001338
    Abandoned
  29. Inkom Silica Quarry
    Surface metal/non-metal · Ash Grove Cement West Inc · MSHA ID 1001016
    Abandoned
  30. Northwest Portable Plant #1
    Surface metal/non-metal · Northwest Crane Rigging & Transport Company · MSHA ID 1001769
    Abandoned
  31. Portable Screening Plant
    Surface metal/non-metal · Snake River Construction Co., Inc. · MSHA ID 1002053
    Abandoned
  32. Rim Rock Pit
    Surface metal/non-metal · Twin Falls Construction Company Inc · MSHA ID 1000358
    Abandoned
  33. River Dredge
    Surface metal/non-metal · Northwest Crane Rigging & Transport Company · MSHA ID 1001821
    Abandoned
  34. Rock Creek
    Surface metal/non-metal · Northwest Crane Rigging & Transport Company · MSHA ID 1001732
    Abandoned
  35. SALMON FALLS CREEK PIT RP-1283
    Surface metal/non-metal · Loughmiller Reclamation Llc · MSHA ID 1001991
    Abandoned
  36. Screening plant
    Surface metal/non-metal · KD Excavation LLC · MSHA ID 1002182
    Abandoned
  37. State Pit Tf 56
    Surface metal/non-metal · Beymer Paving Inc · MSHA ID 1001330
    Abandoned
  38. State Pit Tf 79
    Surface metal/non-metal · Twin Falls Construction Company Inc · MSHA ID 1001419
    Abandoned
  39. State Pit Tf70
    Surface metal/non-metal · Beymer Paving Inc · MSHA ID 1001337
    Abandoned
  40. Sun Trap Pit
    Surface metal/non-metal · Sun Trap Sand & Gravel · MSHA ID 1001675
    Abandoned
  41. Tf 58 Ring Pit
    Surface metal/non-metal · Peter Kiewit Sons' Company · MSHA ID 1001379
    Abandoned
  42. Winn & Company Inc Portable Plant
    Surface metal/non-metal · Winn & Company Inc · MSHA ID 1001743
    Abandoned
  43. Wynn Pit
    Surface metal/non-metal · Western Construction Inc · MSHA ID 1001378
    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 IdahoAll 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.