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MSHA mine register by county

Mines in Caribou County, Idaho

Caribou County, Idaho has 37 mines on MSHA's register: 4 active, 3 intermittent, 30 abandoned. 4 miners have died and 614 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 833 citations.

Every mine MSHA has registered in Caribou 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 Caribou County →

Mines on register
37
Active
4
Fatalities on record
4
Citations issued
833
0 underground · 35 surface · 2 facilities 0 coal · 37 metal and non-metal 3 intermittent 30 abandoned 614 reported accidents, 1983–2026
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.
Caribou County, Idaho · Population 7,118
7.3%
Mining share of county employment
$66,653
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
Conda Partnership 3 0 0
Monsanto Company 3 0 0
Ruveon LLC 3 2 0
Washington Group International Inc 3 0 0
J R Simplot Company 2 1 3
Conda Mining Inc 2 0 1
ITAFOS Conda LLC 2 1 0
Alumet Company 1 0 0
Bryant Smith Projects 1 0 0
Caribou County Road & Bridge 1 0 0
Mines in Caribou County37 on register
  1. Smoky Canyon Mine
    Surface metal/non-metal · J R Simplot Company · MSHA ID 1001590
    Active
  2. Bayer Quartzite Quarry
    Surface metal/non-metal · Ruveon LLC · MSHA ID 1001735
    Active
  3. BFB & Ballard Mines
    Surface metal/non-metal · Ruveon LLC · MSHA ID 1001854
    Active
  4. Husky 1, North Dry Ridge
    Surface metal/non-metal · ITAFOS Conda LLC · MSHA ID 1001938
    Active
  5. Mountain Fuel
    Surface metal/non-metal · Conda Mining Inc · MSHA ID 1001736
    Abandoned
  6. EV, Ballard & Blackfoot Bridge Mines
    Surface metal/non-metal · N.A. Degerstrom · MSHA ID 1001702
    Abandoned
  7. Dry Valley Mine
    Surface metal/non-metal · URS Corp · MSHA ID 1001873
    Abandoned
  8. Conda Mill
    Surface metal/non-metal · J R Simplot Company · MSHA ID 1000094
    Abandoned
  9. Rasmussen Valley Mine
    Surface metal/non-metal · ITAFOS Conda LLC · MSHA ID 1002177
    Abandoned
  10. RASMUSSEN RIDGE
    Surface metal/non-metal · Rhone Poulenc North American Chemicals · MSHA ID 1001867
    Abandoned
  11. Rasmussen Ranch
    Surface metal/non-metal · URS Washington Division · MSHA ID 1001936
    Abandoned
  12. Tenmile Plant & Quarry
    Surface metal/non-metal · Lhoist North America of Arizona · MSHA ID 1001874
    Abandoned
  13. Wooley Valley Operation
    Surface metal/non-metal · Rhone-Poulenc Basic Chemicals Company · MSHA ID 1000095
    Abandoned
  14. Caribou County Portable Crusher
    Surface metal/non-metal · Caribou County Road & Bridge · MSHA ID 1001737
    Intermittent
  15. Henry Mine
    Surface metal/non-metal · Monsanto Company · MSHA ID 1000091
    Abandoned
  16. Caldwell Canyon Mine
    Surface metal/non-metal · Ruveon LLC · MSHA ID 1002337
    Intermittent
  17. Champ Mine
    Surface metal/non-metal · Conda Partnership · MSHA ID 1001593
    Abandoned
  18. Dry Valley Mine
    Surface metal/non-metal · Conda Partnership · MSHA ID 1000556
    Abandoned
  19. Smith Portable Crushing
    Surface metal/non-metal · Bryant Smith Projects · MSHA ID 1002225
    Abandoned
  20. Tin Cup Quarry
    Surface metal/non-metal · Tin Cup Rock Products, L.L.C. · MSHA ID 1002254
    Abandoned
  21. Mountain Fuel
    Surface metal/non-metal · Conda Partnership · MSHA ID 1001694
    Abandoned
  22. CRUSHER #2
    Surface metal/non-metal · Smith Paving & Construction · MSHA ID 1001986
    Abandoned
  23. Monsanto Quartzite Quarry
    Surface metal/non-metal · Monsanto Company · MSHA ID 1000634
    Abandoned
  24. Stoddard Pit
    Surface metal/non-metal · Outback Topsoil, LLC · MSHA ID 4202506
    Abandoned
  25. Portable Crushing Plant
    Surface metal/non-metal · Liddil Paving LLC · MSHA ID 1002250
    Abandoned
  26. Seaton Earthmover Inc./ Chubb Springs
    Surface metal/non-metal · Seaton Earthmover Inc. · MSHA ID 4800653
    Intermittent
  27. Ten Mile Pass Quarry
    Surface metal/non-metal · Washington Group International Inc · MSHA ID 1001914
    Abandoned
  28. Silocon International Ore
    Facility metal/non-metal · Silicon International Ore LLC · MSHA ID 1002017
    Abandoned
  29. Henry Mine
    Surface metal/non-metal · Dravo-Soda Springs · MSHA ID 1001408
    Abandoned
  30. Kerr Mcgee Limestone Quarry
    Surface metal/non-metal · Washington Corps · MSHA ID 1000680
    Abandoned
  31. L & M Portable
    Surface metal/non-metal · L & M Farm Industries Inc · MSHA ID 1002309
    Abandoned
  32. Lanes Creek
    Surface metal/non-metal · Conda Mining Inc · MSHA ID 1001830
    Abandoned
  33. Lanes Creek Mine
    Surface metal/non-metal · Alumet Company · MSHA ID 1001361
    Abandoned
  34. Monsanto Plant-Ore Handling Area
    Facility metal/non-metal · Monsanto Company · MSHA ID 1001052
    Abandoned
  35. Soda Pit
    Surface metal/non-metal · Caribou County Road Dept · MSHA ID 1000964
    Abandoned
  36. TRAIL CANYON LIMESTONE MINE
    Surface metal/non-metal · Vaughn Smith Construction Company · MSHA ID 1001806
    Abandoned
  37. Wooley Valley Mine
    Surface metal/non-metal · Circle A Construction Inc · MSHA ID 1001380
    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.