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MSHA mine register by county

Mines in Johnson County, Wyoming

Johnson County, Wyoming has 62 mines on MSHA's register: 8 intermittent, 41 abandoned. 1 miner has died and 111 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 469 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
62
Active
0
Fatalities on record
1
Citations issued
469
3 underground · 56 surface · 3 facilities 0 coal · 62 metal and non-metal 8 intermittent 41 abandoned 111 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.
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
Croell, 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
Mines in Johnson County62 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. Crusher Plant #1
    Surface metal/non-metal · Croell, Inc. · MSHA ID 4801770
    Intermittent
  5. North Tisdale Shaft No 1
    Underground metal/non-metal · Hilcorp Energy Company · MSHA ID 4801147
    Abandoned
  6. Wash Plant 5
    Surface metal/non-metal · Croell, Inc. · MSHA ID 3901598
    Intermittent
  7. PORTABLE #1
    Surface metal/non-metal · Reeves · MSHA ID 4801422
    Abandoned
  8. Portable Crusher
    Surface metal/non-metal · Mullinax Inc · MSHA ID 4801791
    Intermittent
  9. Cross H Pit
    Surface metal/non-metal · Carlat Construction, Inc. · MSHA ID 4801750
    Intermittent
  10. Metso Screening Plant
    Surface metal/non-metal · Prism Logistics, LLC · MSHA ID 3200587
    Temporarily Idled
  11. Ullery Pit
    Surface metal/non-metal · Sussex Sand & Gravel · MSHA ID 4801647
    Temporarily Idled
  12. Muddy Creek Mine
    Surface metal/non-metal · Ararat Rock of Wyoming · MSHA ID 4801718
    Abandoned
  13. Stone Yard #1
    Surface metal/non-metal · The Stone Yard, LLC · MSHA ID 4801763
    Intermittent
  14. Portable Wash Plant #3
    Surface metal/non-metal · Pete Lien & Sons, Inc./Sand & Gravel Division · MSHA ID 4801543
    Abandoned
  15. Quarter Circle 41 Ranch Pit
    Surface metal/non-metal · Wyoming Construction Materials · MSHA ID 4801827
    Temporarily Idled
  16. CRUSHER #1
    Surface metal/non-metal · Linch Environmental Contractors Inc · MSHA ID 4801407
    Abandoned
  17. Fisher Industries Plant 42
    Surface metal/non-metal · Fisher Sand & Gravel Company · MSHA ID 3201022
    Temporarily Idled
  18. Christensen Ranch
    Facility metal/non-metal · Malapai Resources Company · MSHA ID 4801485
    Abandoned
  19. Ruth Isl
    Facility metal/non-metal · Uranerz U S A Inc · MSHA ID 4801370
    Abandoned
  20. Track Jaw
    Surface metal/non-metal · Prism Logisitics, LLC · MSHA ID 3201045
    Temporarily Idled
  21. Faddis-Kennedy
    Surface metal/non-metal · MGM Enterprises, Inc. · MSHA ID 4801635
    Abandoned
  22. Johnson Cnty Road & Bridge Ptble Screen
    Surface metal/non-metal · Johnson County Road & Bridge · MSHA ID 4801237
    Abandoned
  23. T.A. Ranch Pit
    Surface metal/non-metal · Simon Contractors · MSHA ID 4801734
    Temporarily Idled
  24. PORTABLE #1
    Surface metal/non-metal · Rock Services · MSHA ID 4801555
    Abandoned
  25. PORTABLE WASH PLANT
    Surface metal/non-metal · Cundy Asphalt Paving & Construction · MSHA ID 4801471
    Abandoned
  26. Scale Number One
    Surface metal/non-metal · Intermountain Construction and Materials · MSHA ID 4801735
    Abandoned
  27. Fabtech Wash Plant
    Surface metal/non-metal · Powder River Sand and Gravel · MSHA ID 4801860
    Temporarily Idled
  28. 3R Pit
    Surface metal/non-metal · 3R Farm and Ranch, LLC · MSHA ID 4801847
    Temporarily Idled
  29. BPM 76 Creek Mine
    Surface metal/non-metal · Bentonite Performance Minerals LLC · MSHA ID 4801845
    Abandoned
  30. Camino Mine
    Surface metal/non-metal · CCC Services, LLC · MSHA ID 4801708
    Abandoned
  31. Crusher 1 Rental
    Surface metal/non-metal · K.A.R.T., LLC · MSHA ID 4801890
    Temporarily Idled
  32. Kennedy
    Surface metal/non-metal · Mullinax Inc · MSHA ID 4801872
    Intermittent
  33. Larry's, Inc.
    Surface metal/non-metal · Larrys, Inc · MSHA ID 4801567
    Abandoned
  34. Rule Pit
    Surface metal/non-metal · Jims Water Service, Inc · MSHA ID 4801612
    Abandoned
  35. Screen 1
    Surface metal/non-metal · K.A.R.T.LLC · MSHA ID 4801889
    Intermittent
  36. WCM Mobile Trommel
    Surface metal/non-metal · Wyoming Construction Materials, LLC · MSHA ID 4801849
    Temporarily Idled
  37. Arno Pit
    Surface metal/non-metal · Reeves Inc · MSHA ID 4801198
    Abandoned
  38. Astec Screening Plant
    Surface metal/non-metal · Carlat Construction Inc · MSHA ID 4801867
    Temporarily Idled
  39. Buffalo-Bull Creek Pit
    Surface metal/non-metal · Lusher Inc · MSHA ID 4800280
    Abandoned
  40. Carter Pit
    Surface metal/non-metal · Reeves Inc · MSHA ID 4801107
    Abandoned
  41. Cellers Pit
    Surface metal/non-metal · Empire Sand & Gravel Company Inc · MSHA ID 4801223
    Abandoned
  42. Chabot Mine
    Underground metal/non-metal · U S Energy Corp · MSHA ID 4801199
    Abandoned
  43. Charlie Pit
    Surface metal/non-metal · Cotter Corp · MSHA ID 4801252
    Abandoned
  44. CHC Portable Crusher #1
    Surface metal/non-metal · Cook-Harriet Construction · MSHA ID 4801609
    Abandoned
  45. Cross H Mesa D Pit
    Surface metal/non-metal · Frost Construction Company · MSHA ID 4801134
    Abandoned
  46. Cross H Pit
    Surface metal/non-metal · Carlat Construction, Inc. · MSHA ID 4801802
    Abandoned
  47. Crusher #2
    Surface metal/non-metal · Sierra Construction Company · MSHA ID 4801427
    Abandoned
  48. Daniels Pit
    Surface metal/non-metal · Gilpatrick Construction Company Inc · MSHA ID 4801221
    Abandoned
  49. Hacker Pit
    Surface metal/non-metal · Reeves Inc · MSHA ID 4801037
    Abandoned
  50. Hazelton 1- Turnpike
    Surface metal/non-metal · KART LLC · MSHA ID 4801884
    Temporarily Idled
  51. John Christian Pit
    Surface metal/non-metal · K G Construction Company · MSHA ID 4801205
    Abandoned
  52. Kaycee/Brock Mines
    Surface metal/non-metal · Kaycee Bentonite Corp · MSHA ID 4800970
    Abandoned
  53. Keith Pit
    Surface metal/non-metal · Fisher Sand & Gravel Company · MSHA ID 4801249
    Abandoned
  54. Pine Tree Pit
    Surface metal/non-metal · Big Horn Construction · MSHA ID 4801319
    Abandoned
  55. Reynolds Pit
    Surface metal/non-metal · Reeves Inc · MSHA ID 4800294
    Abandoned
  56. Robinson Canyon Ranch
    Surface metal/non-metal · BF Construction, LLC · MSHA ID 4801835
    Abandoned
  57. Screen #4
    Surface metal/non-metal · Brutill Construction, Inc. · MSHA ID 4801883
    Temporarily Idled
  58. Screen 1
    Surface metal/non-metal · Barnum Construction Services LLC · MSHA ID 4801745
    Abandoned
  59. Screen No. 1
    Surface metal/non-metal · Northern Plains Investments, LLC · MSHA ID 4801703
    Abandoned
  60. South Kaycee Mine
    Surface metal/non-metal · Kaycee Bentonite Corp · MSHA ID 4800876
    Abandoned
  61. Tisdale Exit Pit
    Surface metal/non-metal · Empire Sand & Gravel Company Inc · MSHA ID 4801328
    Abandoned
  62. 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.