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Mines in Kern County, California

Kern County, California has 124 mines on MSHA's register: 18 active, 2 intermittent, 104 abandoned. 16 miners have died and 2,917 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 8,513 citations.

Every mine MSHA has registered in Kern 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 Kern County →

Mines on register
124
Active
18
Fatalities on record
16
Citations issued
8,513
29 underground · 87 surface · 8 facilities 0 coal · 124 metal and non-metal 2 intermittent 104 abandoned 2,917 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.
Kern County, California · Population 910,433
2.3%
Mining share of county employment
$67,660
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
Granite Construction Company 5 1 0
U S Borax Inc 2 1 5
NATIONAL CEMENT COMPANY OF CALIFORNIA INC 2 1 4
Calaveras Portland Cement Company 2 0 1
CalMat Co 2 1 1
CalPortland Cement Company 2 1 1
B & B Materials Inc 2 0 0
California Portland Cement Company 2 0 0
Carlton Global Resources, LLC 2 0 0
Edco Mining Company 2 0 0
Mines in Kern County124 on register
  1. Boron Operations
    Surface metal/non-metal · U S Borax Inc · MSHA ID 0400743
    Active
  2. LEBEC CEMENT PLANT
    Facility metal/non-metal · NATIONAL CEMENT COMPANY OF CALIFORNIA INC · MSHA ID 0400213
    Active
  3. Mojave Plant & Quarry
    Facility metal/non-metal · Calportland · MSHA ID 0400036
    Active
  4. Tehachapi Cement, LLC.
    Facility metal/non-metal · UNACEM North America · MSHA ID 0400196
    Active
  5. TAFT PRODUCTION COMPANY & MINES
    Surface metal/non-metal · TAFT PRODUCTION COMPANY · MSHA ID 0402964
    Active
  6. San Emidio Plant
    Surface metal/non-metal · CalMat Co · MSHA ID 0401800
    Active
  7. Maricopa Plant
    Surface metal/non-metal · Nestle Purina PetCare Company · MSHA ID 0402638
    Active
  8. Soledad Mountain Project
    Surface metal/non-metal · Golden Queen Mining Company · MSHA ID 0405319
    Active
  9. Lost Hills Mining
    Surface metal/non-metal · Lost Hills Mining LLC · MSHA ID 0400929
    Active
  10. Mojave Pit
    Surface metal/non-metal · Holliday Rock Company Inc · MSHA ID 0404665
    Active
  11. Edmonston Rock Plant
    Surface metal/non-metal · Griffith Company · MSHA ID 0403447
    Active
  12. Sydney Peak Stone
    Surface metal/non-metal · Sydney Peak Stone, Inc. · MSHA ID 0404483
    Active
  13. Ridgecrest Rock Plant
    Surface metal/non-metal · Robertson's Ready Mix Ltd · MSHA ID 0404163
    Active
  14. CANEBRAKE PIT
    Surface metal/non-metal · 7/11 MATERIALS INC · MSHA ID 0402999
    Active
  15. Edison Sand Pit
    Surface metal/non-metal · Edison Sand & Gravel, Inc. · MSHA ID 0401756
    Active
  16. Mojave Rock Mine
    Surface metal/non-metal · MRC Rock & Sand, LLC. · MSHA ID 0405917
    Active
  17. Big Iron DG Mine
    Surface metal/non-metal · Big Iron DG Mine LLC · MSHA ID 0405579
    Active
  18. Solari Sand and Gravel
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0405947
    Active
  19. Rand Mine
    Surface metal/non-metal · Glamis Rand Mining Co · MSHA ID 0404752
    Abandoned
  20. Blue Eagle Lode Mine
    Underground metal/non-metal · Blue Eagle Lode Mining Co. · MSHA ID 0404787
    Abandoned
  21. Tehachapi Quarry
    Surface metal/non-metal · Calaveras Portland Cement Company · MSHA ID 0404354
    Abandoned
  22. GOLDEN QUEEN
    Underground metal/non-metal · Golden Queen Mining Company Inc · MSHA ID 0405292
    Abandoned
  23. Boron Refinery
    Facility metal/non-metal · United States Borax & Chemical Corp · MSHA ID 0403886
    Abandoned
  24. Wheeler Ridge Plant
    Surface metal/non-metal · CalMat Co · MSHA ID 0401829
    Abandoned
  25. Lebec Plant
    Surface metal/non-metal · B & B Materials Inc · MSHA ID 0404780
    Abandoned
  26. STANDARD HILL MINE
    Surface metal/non-metal · Billiton Minerals U S A · MSHA ID 0404912
    Abandoned
  27. Arvin Pit
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0404360
    Abandoned
  28. Diatomite Project
    Surface metal/non-metal · Getty Mining Company · MSHA ID 0404496
    Abandoned
  29. Standard Hill
    Surface metal/non-metal · Gull Operations Inc · MSHA ID 0404883
    Abandoned
  30. Hi Desert Rustic Stone
    Surface metal/non-metal · Sydney Peak Stone Inc · MSHA ID 0404965
    Abandoned
  31. Cactus Gold Mine
    Surface metal/non-metal · Brown & Root (U S A) Inc · MSHA ID 0404786
    Abandoned
  32. James Road Pit & Mill
    Surface metal/non-metal · Kern Rock Company · MSHA ID 0401830
    Abandoned
  33. ROBBERS ROOST
    Surface metal/non-metal · Oro Limited · MSHA ID 0404676
    Abandoned
  34. Bakersfield Mill
    Surface metal/non-metal · H Lima Company Inc · MSHA ID 0405482
    Abandoned
  35. Boron
    Surface metal/non-metal · Carlton Global Resources, LLC · MSHA ID 0405671
    Abandoned
  36. Standard Hill
    Surface metal/non-metal · Target Construction Company · MSHA ID 0404879
    Abandoned
  37. Mojave Quarry
    Surface metal/non-metal · California Portland Cement Company · MSHA ID 0404350
    Abandoned
  38. Sheep Springs Pit And Mill
    Surface metal/non-metal · Excel Mineral Company Inc · MSHA ID 0400551
    Abandoned
  39. BOWMAN PIT
    Surface metal/non-metal · Holliday Rock Company Inc. · MSHA ID 0404739
    Abandoned
  40. RIVER PLANT
    Surface metal/non-metal · Kern Brothers Trucking Inc · MSHA ID 0405085
    Abandoned
  41. Evening Star Mine
    Underground metal/non-metal · Blackhawk · MSHA ID 0404663
    Abandoned
  42. Sierra Piedra Company
    Surface metal/non-metal · Sierra Piedra Company · MSHA ID 0404831
    Abandoned
  43. Portable #1
    Surface metal/non-metal · Kern Brothers Trucking Inc · MSHA ID 0405604
    Intermittent
  44. Valley Rock
    Surface metal/non-metal · Gilliam & Sons Inc · MSHA ID 0405733
    Abandoned
  45. Atolia Giant Mine
    Surface metal/non-metal · Mindamar Resources Inc · MSHA ID 0404601
    Abandoned
  46. Inyokern Sand Pit
    Surface metal/non-metal · Desert Construction Company · MSHA ID 0404789
    Abandoned
  47. RANDSBURG PLACER MINE
    Surface metal/non-metal · Southwest Contractors · MSHA ID 0405227
    Abandoned
  48. Rosamond Minerals Incorporated
    Facility metal/non-metal · Rosamond Minerals Inc · MSHA ID 0402649
    Abandoned
  49. Portable Plant #1
    Surface metal/non-metal · B & B Materials Inc · MSHA ID 0405360
    Abandoned
  50. Portable Plant #1
    Surface metal/non-metal · Custom Crushing Inc · MSHA ID 0405600
    Abandoned
  51. Syndex Sand & Gravel
    Surface metal/non-metal · Syndex LLC · MSHA ID 0405697
    Abandoned
  52. Screening Plant B
    Surface metal/non-metal · Yeager Skanska, Inc. · MSHA ID 0405552
    Abandoned
  53. Garlock Pit
    Surface metal/non-metal · Maverick Asphalt Inc · MSHA ID 0405773
    Abandoned
  54. Loop Ranch Limestone Quarry
    Surface metal/non-metal · H Lima Co Inc. · MSHA ID 0405655
    Abandoned
  55. GOT ROCKS
    Surface metal/non-metal · Got Rocks · MSHA ID 0404904
    Abandoned
  56. James Road Pit
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0401751
    Abandoned
  57. Gem Hill Mine Site
    Surface metal/non-metal · CalPortland Cement Company · MSHA ID 0405976
    Intermittent
  58. PACIFIC MINE
    Surface metal/non-metal · Standard Industrial Minerals Inc · MSHA ID 0405120
    Abandoned
  59. Rosamond Site
    Surface metal/non-metal · C & M TOPSOIL INC · MSHA ID 0405979
    Abandoned
  60. Big Rock Creek Quarry
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0405212
    Abandoned
  61. Baron
    Surface metal/non-metal · David Doremus · MSHA ID 0405962
    Abandoned
  62. P V CLAY
    Surface metal/non-metal · Protech Minerals, LLC · MSHA ID 0405399
    Abandoned
  63. PLANT 1
    Surface metal/non-metal · Frazier Park Sand & Gravel · MSHA ID 0405316
    Abandoned
  64. Rio Tinto Mine
    Surface metal/non-metal · Kiewit · MSHA ID 0405925
    Abandoned
  65. BORON OPERATIONS UNDERGROUND MIN
    Underground metal/non-metal · U S Borax Inc · MSHA ID 0405366
    Abandoned
  66. Atolia Giant #2
    Surface metal/non-metal · General Quarters Mining Inc · MSHA ID 0404624
    Abandoned
  67. B And J Gold
    Underground metal/non-metal · B & J Gold · MSHA ID 0401330
    Abandoned
  68. BAKERSFIELD PORTABLE PLANT
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0404766
    Abandoned
  69. Banjo Mine
    Surface metal/non-metal · Banjo Placers · MSHA ID 0404644
    Abandoned
  70. Big Bute Mine
    Facility metal/non-metal · Big Bute Mining · MSHA ID 0405143
    Abandoned
  71. Big Dyke
    Surface metal/non-metal · Cascade Exploration · MSHA ID 0405079
    Abandoned
  72. Big Four Mining
    Underground metal/non-metal · Big Four Mining Company · MSHA ID 0404648
    Abandoned
  73. Bissell Magnesite
    Surface metal/non-metal · California Portland Cement Company · MSHA ID 0404388
    Abandoned
  74. Blackburn Dam
    Surface metal/non-metal · Earl Williams & Sons · MSHA ID 0405073
    Abandoned
  75. Bowstring Operation
    Surface metal/non-metal · Bowstring Operation · MSHA ID 0405691
    Abandoned
  76. Butte Lode
    Underground metal/non-metal · John Romp Group · MSHA ID 0404518
    Abandoned
  77. Cactus Gold Winkler Underground
    Underground metal/non-metal · Small Mine Development · MSHA ID 0404939
    Abandoned
  78. Calcite Property
    Surface metal/non-metal · Calmat Company · MSHA ID 0404387
    Abandoned
  79. California Rand
    Underground metal/non-metal · Silver State Mining Corp · MSHA ID 0404653
    Abandoned
  80. Canebrake Pit & Mill
    Surface metal/non-metal · Osborn Sand & Gravel · MSHA ID 0402797
    Abandoned
  81. Devil'S Den
    Underground metal/non-metal · Fannin-Superior Gypsum Company · MSHA ID 0404233
    Abandoned
  82. Eureka Mine
    Surface metal/non-metal · Eureka Mining Company Inc · MSHA ID 0404174
    Abandoned
  83. Feather Fork Mine
    Underground metal/non-metal · Feather Fork Mines Ltd · MSHA ID 0404213
    Abandoned
  84. Garlock Plant
    Surface metal/non-metal · Pacific Western Construction Inc · MSHA ID 0404208
    Abandoned
  85. Glen Olive Mine
    Underground metal/non-metal · Glen Olive Mining Company Inc · MSHA ID 0404318
    Abandoned
  86. Golden Queens Tailings Pile
    Surface metal/non-metal · Conejo Readymix Inc · MSHA ID 0404976
    Abandoned
  87. Goler Rock And Gravel
    Surface metal/non-metal · Goler Rock & Gravel · MSHA ID 0405051
    Abandoned
  88. Gwynne Mine
    Underground metal/non-metal · Warrington Brothers Mining Company · MSHA ID 0404805
    Abandoned
  89. H & S Mechanical Construction Inc
    Facility metal/non-metal · H & S Mechanical Construction Inc · MSHA ID 0405765
    Abandoned
  90. High Enough
    Underground metal/non-metal · Metaline Industries Inc · MSHA ID 0404133
    Abandoned
  91. HIGH GRADE #3
    Underground metal/non-metal · Robert Or Cy Guidry · MSHA ID 0405323
    Abandoned
  92. Hop Demonstration Units #1-2-3 & 4
    Underground metal/non-metal · Fenix & Scisson Inc · MSHA ID 0404394
    Abandoned
  93. James Francis Contractor Incorporated
    Surface metal/non-metal · James Francis Contractor Inc · MSHA ID 0405196
    Abandoned
  94. Jawbone Canyon
    Surface metal/non-metal · Desert Colors Enterprises Inc · MSHA ID 0405119
    Abandoned
  95. Lebec Quarry
    Surface metal/non-metal · National Cement Company Of California Inc · MSHA ID 0404355
    Abandoned
  96. Little Sparkler Mine
    Underground metal/non-metal · Great Lakes Chemical Corp · MSHA ID 0403709
    Abandoned
  97. Lost Hills Mines
    Surface metal/non-metal · Fannin-Superior Gypsum Company Inc · MSHA ID 0400927
    Abandoned
  98. Lucy B No 3
    Underground metal/non-metal · P G C S Ltd · MSHA ID 0404226
    Abandoned
  99. Miracle Mine
    Underground metal/non-metal · Martin Trost Associates · MSHA ID 0404127
    Abandoned
  100. Monarch Quarries
    Surface metal/non-metal · Monarch Quarries · MSHA ID 0404315
    Abandoned
  101. Monarch Quarry
    Surface metal/non-metal · Carlton Global Resources LLC · MSHA ID 0405749
    Abandoned
  102. P V Clay Mine
    Surface metal/non-metal · Pfizer Inc · MSHA ID 0400534
    Abandoned
  103. Pala Ranch Mine
    Underground metal/non-metal · Keystone Canyon Mining Company · MSHA ID 0404222
    Abandoned
  104. Plant 1
    Surface metal/non-metal · North American Recycling and Crushing, LLC · MSHA ID 0405740
    Abandoned
  105. Poka Dot 1
    Underground metal/non-metal · Freear Mining · MSHA ID 0404587
    Abandoned
  106. Pruett Desert Supply
    Surface metal/non-metal · Pruett Desert Supply & Service Company · MSHA ID 0405105
    Abandoned
  107. Quatal Canyon Gypsum Quarry
    Surface metal/non-metal · Calaveras Portland Cement Company · MSHA ID 0404235
    Abandoned
  108. Salt Dale Plant
    Surface metal/non-metal · Long Beach Salt Company · MSHA ID 0401598
    Abandoned
  109. Sidewinder #1
    Underground metal/non-metal · Sidewinder Mine & Milling Company Inc · MSHA ID 0404402
    Abandoned
  110. Silver Cross
    Underground metal/non-metal · Capital Mineral Association Inc · MSHA ID 0404570
    Abandoned
  111. Snow White Mine
    Surface metal/non-metal · VM Buyer LLC · MSHA ID 0405938
    Abandoned
  112. Soledad East
    Underground metal/non-metal · Edco Mining Company · MSHA ID 0404489
    Abandoned
  113. Standard Hill
    Underground metal/non-metal · Shell Mining Company · MSHA ID 0404696
    Abandoned
  114. Stark Pit
    Surface metal/non-metal · Best Materials · MSHA ID 0404874
    Abandoned
  115. Summit Diggings
    Surface metal/non-metal · Chemetech Corp · MSHA ID 0404927
    Abandoned
  116. Susan Group #1 #2 #3 #4 #5
    Underground metal/non-metal · Tri-State Corp · MSHA ID 0404655
    Abandoned
  117. Taft Plant
    Surface metal/non-metal · General Production Service Of Ca Inc · MSHA ID 0404337
    Abandoned
  118. Tropico Gold Mine
    Underground metal/non-metal · Shell Oil Company · MSHA ID 0404607
    Abandoned
  119. Tropico Mill
    Facility metal/non-metal · Edco Mining Company · MSHA ID 0404875
    Abandoned
  120. Tungsten Peak Mine
    Underground metal/non-metal · Graham & Associates Inc · MSHA ID 0404134
    Abandoned
  121. WEBSTER SAND
    Surface metal/non-metal · Webster Sand Inc · MSHA ID 0401998
    Abandoned
  122. Wild Burro Mine
    Underground metal/non-metal · Wild Burro Mine Partnership · MSHA ID 0403526
    Abandoned
  123. York Claims
    Surface metal/non-metal · Lentz Mining · MSHA ID 0404775
    Abandoned
  124. Zenda
    Surface metal/non-metal · Equinox Resources Inc · MSHA ID 0405061
    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 CaliforniaAll 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.