Mining Incidents
MSHA mine register by county

Mines in Johnson County, Wyoming

Johnson County, Wyoming has 61 mines on MSHA's register: 7 intermittent, 41 abandoned. 1 miner has died and 108 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 457 citations.

Every mine MSHA has registered in Johnson 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 Johnson County →

Mines on register
61
Active
0
Fatalities on record
1
Citations issued
457
3 underground · 55 surface · 3 facilities 0 coal · 61 metal and non-metal 7 intermittent 41 abandoned 108 reported accidents, 1983–2026

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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.
Johnson County, Wyoming · Population 8,602
3.5%
Mining share of county employment
$63,905
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
Reeves Inc 4 0 0
KART LLC 3 0 0
Carlat Construction, Inc. 2 0 0
Empire Sand & Gravel Company Inc 2 0 0
Fisher Sand & Gravel Company 2 0 0
Hilcorp Energy Company 2 0 0
Kaycee Bentonite Corp 2 0 0
Mullinax Inc 2 0 0
Prism Logistics, LLC 2 0 0
Reeves 2 0 0
Mines in Johnson County61 on register
  1. IRIGARAY/CHRISTENSEN PROJECT
    Facility metal/non-metal · Cogema Mining Inc · MSHA ID 4801148
    Abandoned
  2. Kaycee Mine
    Surface metal/non-metal · Black Hills Bentonite LLC · MSHA ID 4800877
    Intermittent
  3. Tom #1
    Underground metal/non-metal · Hilcorp Energy Company · MSHA ID 4801417
    Abandoned
  4. North Tisdale Shaft No 1
    Underground metal/non-metal · Hilcorp Energy Company · MSHA ID 4801147
    Abandoned
  5. Wash Plant 5
    Surface metal/non-metal · Croell, Inc. · MSHA ID 3901598
    Intermittent
  6. PORTABLE #1
    Surface metal/non-metal · Reeves · MSHA ID 4801422
    Abandoned
  7. Portable Crusher
    Surface metal/non-metal · Mullinax Inc · MSHA ID 4801791
    Intermittent
  8. Cross H Pit
    Surface metal/non-metal · Carlat Construction, Inc. · MSHA ID 4801750
    Intermittent
  9. Metso Screening Plant
    Surface metal/non-metal · Prism Logistics, LLC · MSHA ID 3200587
    Temporarily Idled
  10. Ullery Pit
    Surface metal/non-metal · Sussex Sand & Gravel · MSHA ID 4801647
    Temporarily Idled
  11. Muddy Creek Mine
    Surface metal/non-metal · Ararat Rock of Wyoming · MSHA ID 4801718
    Abandoned
  12. Stone Yard #1
    Surface metal/non-metal · The Stone Yard, LLC · MSHA ID 4801763
    Intermittent
  13. Portable Wash Plant #3
    Surface metal/non-metal · Pete Lien & Sons, Inc./Sand & Gravel Division · MSHA ID 4801543
    Abandoned
  14. Quarter Circle 41 Ranch Pit
    Surface metal/non-metal · Wyoming Construction Materials · MSHA ID 4801827
    Temporarily Idled
  15. CRUSHER #1
    Surface metal/non-metal · Linch Environmental Contractors Inc · MSHA ID 4801407
    Abandoned
  16. Fisher Industries Plant 42
    Surface metal/non-metal · Fisher Sand & Gravel Company · MSHA ID 3201022
    Temporarily Idled
  17. Christensen Ranch
    Facility metal/non-metal · Malapai Resources Company · MSHA ID 4801485
    Abandoned
  18. Ruth Isl
    Facility metal/non-metal · Uranerz U S A Inc · MSHA ID 4801370
    Abandoned
  19. Track Jaw
    Surface metal/non-metal · Prism Logisitics, LLC · MSHA ID 3201045
    Temporarily Idled
  20. Faddis-Kennedy
    Surface metal/non-metal · MGM Enterprises, Inc. · MSHA ID 4801635
    Abandoned
  21. Johnson Cnty Road & Bridge Ptble Screen
    Surface metal/non-metal · Johnson County Road & Bridge · MSHA ID 4801237
    Abandoned
  22. T.A. Ranch Pit
    Surface metal/non-metal · Simon Contractors · MSHA ID 4801734
    Temporarily Idled
  23. PORTABLE #1
    Surface metal/non-metal · Rock Services · MSHA ID 4801555
    Abandoned
  24. PORTABLE WASH PLANT
    Surface metal/non-metal · Cundy Asphalt Paving & Construction · MSHA ID 4801471
    Abandoned
  25. Scale Number One
    Surface metal/non-metal · Intermountain Construction and Materials · MSHA ID 4801735
    Abandoned
  26. Fabtech Wash Plant
    Surface metal/non-metal · Powder River Sand and Gravel · MSHA ID 4801860
    Temporarily Idled
  27. 3R Pit
    Surface metal/non-metal · 3R Farm and Ranch, LLC · MSHA ID 4801847
    Temporarily Idled
  28. BPM 76 Creek Mine
    Surface metal/non-metal · Bentonite Performance Minerals LLC · MSHA ID 4801845
    Abandoned
  29. Camino Mine
    Surface metal/non-metal · CCC Services, LLC · MSHA ID 4801708
    Abandoned
  30. Crusher 1 Rental
    Surface metal/non-metal · K.A.R.T., LLC · MSHA ID 4801890
    Temporarily Idled
  31. Kennedy
    Surface metal/non-metal · Mullinax Inc · MSHA ID 4801872
    Intermittent
  32. Larry's, Inc.
    Surface metal/non-metal · Larrys, Inc · MSHA ID 4801567
    Abandoned
  33. Rule Pit
    Surface metal/non-metal · Jims Water Service, Inc · MSHA ID 4801612
    Abandoned
  34. Screen 1
    Surface metal/non-metal · K.A.R.T.LLC · MSHA ID 4801889
    Intermittent
  35. WCM Mobile Trommel
    Surface metal/non-metal · Wyoming Construction Materials, LLC · MSHA ID 4801849
    Temporarily Idled
  36. Arno Pit
    Surface metal/non-metal · Reeves Inc · MSHA ID 4801198
    Abandoned
  37. Astec Screening Plant
    Surface metal/non-metal · Carlat Construction Inc · MSHA ID 4801867
    Temporarily Idled
  38. Buffalo-Bull Creek Pit
    Surface metal/non-metal · Lusher Inc · MSHA ID 4800280
    Abandoned
  39. Carter Pit
    Surface metal/non-metal · Reeves Inc · MSHA ID 4801107
    Abandoned
  40. Cellers Pit
    Surface metal/non-metal · Empire Sand & Gravel Company Inc · MSHA ID 4801223
    Abandoned
  41. Chabot Mine
    Underground metal/non-metal · U S Energy Corp · MSHA ID 4801199
    Abandoned
  42. Charlie Pit
    Surface metal/non-metal · Cotter Corp · MSHA ID 4801252
    Abandoned
  43. CHC Portable Crusher #1
    Surface metal/non-metal · Cook-Harriet Construction · MSHA ID 4801609
    Abandoned
  44. Cross H Mesa D Pit
    Surface metal/non-metal · Frost Construction Company · MSHA ID 4801134
    Abandoned
  45. Cross H Pit
    Surface metal/non-metal · Carlat Construction, Inc. · MSHA ID 4801802
    Abandoned
  46. Crusher #2
    Surface metal/non-metal · Sierra Construction Company · MSHA ID 4801427
    Abandoned
  47. Daniels Pit
    Surface metal/non-metal · Gilpatrick Construction Company Inc · MSHA ID 4801221
    Abandoned
  48. Hacker Pit
    Surface metal/non-metal · Reeves Inc · MSHA ID 4801037
    Abandoned
  49. Hazelton 1- Turnpike
    Surface metal/non-metal · KART LLC · MSHA ID 4801884
    Temporarily Idled
  50. John Christian Pit
    Surface metal/non-metal · K G Construction Company · MSHA ID 4801205
    Abandoned
  51. Kaycee/Brock Mines
    Surface metal/non-metal · Kaycee Bentonite Corp · MSHA ID 4800970
    Abandoned
  52. Keith Pit
    Surface metal/non-metal · Fisher Sand & Gravel Company · MSHA ID 4801249
    Abandoned
  53. Pine Tree Pit
    Surface metal/non-metal · Big Horn Construction · MSHA ID 4801319
    Abandoned
  54. Reynolds Pit
    Surface metal/non-metal · Reeves Inc · MSHA ID 4800294
    Abandoned
  55. Robinson Canyon Ranch
    Surface metal/non-metal · BF Construction, LLC · MSHA ID 4801835
    Abandoned
  56. Screen #4
    Surface metal/non-metal · Brutill Construction, Inc. · MSHA ID 4801883
    Temporarily Idled
  57. Screen 1
    Surface metal/non-metal · Barnum Construction Services LLC · MSHA ID 4801745
    Abandoned
  58. Screen No. 1
    Surface metal/non-metal · Northern Plains Investments, LLC · MSHA ID 4801703
    Abandoned
  59. South Kaycee Mine
    Surface metal/non-metal · Kaycee Bentonite Corp · MSHA ID 4800876
    Abandoned
  60. Tisdale Exit Pit
    Surface metal/non-metal · Empire Sand & Gravel Company Inc · MSHA ID 4801328
    Abandoned
  61. UNIT #1
    Surface metal/non-metal · Kc Oilfield Service Inc · MSHA ID 4801461
    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 WyomingAll 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.