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MSHA mine register by county

Mines in Pima County, Arizona

Pima County, Arizona has 144 mines on MSHA's register: 16 active, 5 intermittent, 119 abandoned. 14 miners have died and 3,814 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 8,400 citations.

Every mine MSHA has registered in Pima 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 Pima County →

Mines on register
144
Active
16
Fatalities on record
14
Citations issued
8,400
10 underground · 117 surface · 14 facilities 0 coal · 144 metal and non-metal 5 intermittent 119 abandoned 3,814 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.
Pima County, Arizona · Population 1,049,947
0.6%
Mining share of county employment
$67,929
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 10 2 0
Ashton Company Inc Contractors & Engineers 8 0 0
CALPORTLAND COMPANY 7 4 1
ASARCO LLC, a Delaware Limited Liability Company 5 2 5
CalMat Co 5 1 0
Lamb Rock 5 0 0
United Metro Materials Inc 5 0 0
Calmat Company Of Arizona 3 0 1
Anamax Mining Company 3 0 0
CEMEX Construction Materials South LLC 3 2 0
Mines in Pima County144 on register
  1. Freeport-McMoRan Sierrita Ops.
    Surface metal/non-metal · Freeport-McMoRan Sierrita Ops. · MSHA ID 0200144
    Active
  2. MISSION/SAN XAVIER/EISENHOWER
    Surface metal/non-metal · ASARCO LLC, a Delaware Limited Liability Company · MSHA ID 0200135
    Active
  3. RILLITO PLANT
    Facility metal/non-metal · CalPortland Company · MSHA ID 0201138
    Active
  4. SILVER BELL MINING LLC
    Surface metal/non-metal · ASARCO LLC, a Delaware Limited Liability Company · MSHA ID 0200134
    Active
  5. ORANGE GROVE
    Surface metal/non-metal · CALPORTLAND COMPANY · MSHA ID 0201203
    Active
  6. Santa Rita Plan
    Surface metal/non-metal · Cimbar Resources · MSHA ID 0202368
    Active
  7. SWAN PIT
    Surface metal/non-metal · GRANITE CONSTRUCTION COMPANY · MSHA ID 0202647
    Active
  8. RILLITO QUARRY
    Surface metal/non-metal · CalPortland Company · MSHA ID 0200006
    Active
  9. Silver Bell
    Surface metal/non-metal · Rock Pros USA LLC · MSHA ID 0202848
    Active
  10. CEMEX-APEX
    Surface metal/non-metal · CEMEX Construction Materials South LLC · MSHA ID 0202585
    Active
  11. MARANA PLANT
    Surface metal/non-metal · CalMat Co · MSHA ID 0202919
    Active
  12. Amrize Sand Crusher #2
    Surface metal/non-metal · Amrize Southwest Inc. · MSHA ID 0203118
    Active
  13. Tangerine Road Pit
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0200649
    Active
  14. Twin Peaks Aggregate
    Surface metal/non-metal · CalPortland Company · MSHA ID 0202283
    Active
  15. CEMEX-PIMA
    Surface metal/non-metal · CEMEX Construction Materials South LLC · MSHA ID 0202670
    Active
  16. Fraguita Mill Site
    Facility metal/non-metal · GoodMark Capital Group Inc. · MSHA ID 0203445
    Active
  17. MISSION MILL
    Facility metal/non-metal · Asarco Inc · MSHA ID 0200855
    Abandoned
  18. Mission, San Xavier, Eisenhower
    Underground metal/non-metal · Asarco Inc · MSHA ID 0202626
    Abandoned
  19. Sonora Environmental LLC dba B & R Mats
    Surface metal/non-metal · B & R Materials · MSHA ID 0200704
    Abandoned
  20. Oracle Ridge Mine
    Surface metal/non-metal · Wedgetail Operations LLC · MSHA ID 0200840
    Abandoned
  21. Airport Plant
    Surface metal/non-metal · Calmat Company Of Arizona · MSHA ID 0201585
    Abandoned
  22. DREXEL PIT
    Surface metal/non-metal · Sunward Materials · MSHA ID 0200693
    Abandoned
  23. New Cornelia Branch Mill
    Facility metal/non-metal · Phelps Dodge Corp · MSHA ID 0200854
    Abandoned
  24. MISSION SOUTH MILL
    Facility metal/non-metal · Asarco Inc · MSHA ID 0200157
    Abandoned
  25. Ina Pit
    Surface metal/non-metal · Cal Mat Co · MSHA ID 0201483
    Abandoned
  26. FMI Ajo Operations
    Surface metal/non-metal · Freeport McMoRan Copper & Gold · MSHA ID 0200156
    Abandoned
  27. Silver Bell Mill
    Facility metal/non-metal · Asarco Inc · MSHA ID 0200851
    Abandoned
  28. Cyprus Twin Buttes Corporation
    Surface metal/non-metal · Cyprus Twin Buttes Corp · MSHA ID 0200136
    Abandoned
  29. BLACK ANGUS PLANT
    Surface metal/non-metal · CalMat Co · MSHA ID 0202814
    Abandoned
  30. Twin Buttes-Oxide Plant
    Facility metal/non-metal · Anamax Mining Company · MSHA ID 0201592
    Abandoned
  31. GEORGIA MARBLE COMPANY
    Surface metal/non-metal · Georgia Marble Company · MSHA ID 0201201
    Abandoned
  32. Copper World LLC
    Surface metal/non-metal · Copper World · MSHA ID 0203256
    NonProducing
  33. RIVER ROAD PLANT
    Surface metal/non-metal · Churchman Sand and Gravel LLC · MSHA ID 0202832
    Intermittent
  34. Portable Plant #2 - Crusher
    Surface metal/non-metal · Ashton Company Inc · MSHA ID 0202462
    Abandoned
  35. Green Valley
    Surface metal/non-metal · Cal Mat Co · MSHA ID 0202643
    Abandoned
  36. L A Downey & Sons Inc
    Surface metal/non-metal · L A Downey & Sons Inc · MSHA ID 0202162
    Abandoned
  37. Clay Mine Adobe, Inc.
    Surface metal/non-metal · Clay Mine Adobe, Inc. · MSHA ID 0202739
    Abandoned
  38. CEMEX - CORTARO WET
    Surface metal/non-metal · CEMEX Construction Materials South LLC · MSHA ID 0202268
    Abandoned
  39. Georgia Marble Company Of Arizona-Plant
    Facility metal/non-metal · Georgia Marble Company Of Arizona · MSHA ID 0201200
    Abandoned
  40. Portable Plant #1
    Surface metal/non-metal · Ashton Company Inc · MSHA ID 0202833
    Abandoned
  41. PORTABLE CRUSHER 05
    Facility metal/non-metal · CPC Southwest Materials Inc · MSHA ID 0202612
    Abandoned
  42. Tangerine Road Plant
    Surface metal/non-metal · Calmat Company Of Arizona · MSHA ID 0201054
    Abandoned
  43. Twin Buttes Mine
    Surface metal/non-metal · Freeport-McMoRan Sierrita Inc. · MSHA ID 0203262
    Abandoned
  44. ACME SAND & GRAVEL
    Surface metal/non-metal · Kimpton'S Acme Sand & Gravel · MSHA ID 0200627
    Abandoned
  45. GREY ROCK MISSION PIT
    Surface metal/non-metal · Recwest Inc · MSHA ID 0202759
    Abandoned
  46. Twin Buttes Sulfide Mill
    Facility metal/non-metal · Anamax Mining Company · MSHA ID 0200850
    Abandoned
  47. VALENCIA
    Surface metal/non-metal · CPC Southwest Materials Inc · MSHA ID 0200989
    Abandoned
  48. Tanks Wilmot landfill
    Surface metal/non-metal · outlaw excavating llc · MSHA ID 0203479
    Intermittent
  49. Portable #4
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0202640
    Abandoned
  50. Mission
    Surface metal/non-metal · Lamb Rock · MSHA ID 0203237
    Abandoned
  51. Wentworth
    Surface metal/non-metal · Lamb Rock · MSHA ID 0203236
    Abandoned
  52. UNITED METRO MATERIALS INC., WET
    Surface metal/non-metal · United Metro Materials Inc · MSHA ID 0200708
    Abandoned
  53. Sierra Mining and Crushing LLC
    Surface metal/non-metal · Sierra Mining and Crushing LLC · MSHA ID 0203139
    Abandoned
  54. Pantano Mine
    Surface metal/non-metal · Phoenix Brick Yard · MSHA ID 0200109
    Abandoned
  55. GREY ROCK SIERRITA PIT
    Surface metal/non-metal · Recwest Inc · MSHA ID 0202860
    Abandoned
  56. Hughes Pit
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0200678
    Abandoned
  57. Twin Buttes-#1 Adit
    Underground metal/non-metal · Anamax Mining Company · MSHA ID 0201565
    Abandoned
  58. 6708 JCI Plant
    Surface metal/non-metal · Lamb Rock · MSHA ID 0203235
    Abandoned
  59. Pioneer Sand Company - Sacaton
    Surface metal/non-metal · Pioneer Sand Co · MSHA ID 0203120
    Abandoned
  60. Rinker Materials Cortero Portable
    Surface metal/non-metal · Rinker Materials · MSHA ID 0202582
    Abandoned
  61. Rinker Materials Cortero VSI
    Surface metal/non-metal · RINKER MATERIALS · MSHA ID 0202644
    Abandoned
  62. Trommel Portable Plant
    Surface metal/non-metal · Western Nevada Materials · MSHA ID 0202819
    Abandoned
  63. Wilmot Plant
    Surface metal/non-metal · AzConAgg (Huachuca Concrete) · MSHA ID 0203197
    Abandoned
  64. Blue Jay Mine
    Underground metal/non-metal · K & R GOLD LLC · MSHA ID 0202648
    Abandoned
  65. PORTABLE #30-1083
    Surface metal/non-metal · United Metro Materials Inc · MSHA ID 0202403
    Abandoned
  66. B & R Pit #4
    Surface metal/non-metal · Pantano Sand & Gravel · MSHA ID 0202272
    Abandoned
  67. INDIAN TOWN QUARRY
    Surface metal/non-metal · Catalina Marble Inc · MSHA ID 0201488
    Abandoned
  68. Magma Copper Company
    Surface metal/non-metal · Ashton Company Inc · MSHA ID 0202459
    Abandoned
  69. PANTANO
    Surface metal/non-metal · CalPortland Company · MSHA ID 0201608
    Abandoned
  70. Pantano Materials
    Surface metal/non-metal · Pantano Materials · MSHA ID 0201848
    Abandoned
  71. Pantano Pit
    Surface metal/non-metal · G & A Sand & Gravel Inc · MSHA ID 0202240
    Abandoned
  72. Pueblo Pebbles Pit
    Surface metal/non-metal · Pueblo Sand & Gravel Inc · MSHA ID 0201927
    Abandoned
  73. Spencer Material
    Surface metal/non-metal · Spencer Construction · MSHA ID 0203460
    Intermittent
  74. Valley Rock & Sand Co Inc
    Surface metal/non-metal · Valley Rock & Sand Co Inc · MSHA ID 0201238
    Abandoned
  75. Portable Read Screen All
    Surface metal/non-metal · Jim Bush Sand & Gravel · MSHA ID 0202764
    Abandoned
  76. Sacaton
    Surface metal/non-metal · Grey Rock · MSHA ID 0202976
    Abandoned
  77. ABC Sand & Gravel
    Surface metal/non-metal · ABC Sand & Gravel · MSHA ID 0202752
    Abandoned
  78. Pima Mobile 1
    Surface metal/non-metal · Arizona General Engineering Contracting, Inc. · MSHA ID 0203252
    Abandoned
  79. Viewpoint
    Surface metal/non-metal · Lamb Rock · MSHA ID 0203245
    Abandoned
  80. Cross Hill
    Surface metal/non-metal · CalMat Co · MSHA ID 0203429
    Abandoned
  81. Date Creek Quarry
    Surface metal/non-metal · Jake's Granite Supplies LLC · MSHA ID 0202955
    Abandoned
  82. Kerley Pit
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0203375
    Abandoned
  83. Portable Screen
    Surface metal/non-metal · Ashton Company Inc Contractors & Engineers · MSHA ID 0203068
    Abandoned
  84. Powerscreen
    Surface metal/non-metal · Lamb Rock · MSHA ID 0203244
    Abandoned
  85. SAN XAVIER ROCK & MATERIALS PLAN
    Surface metal/non-metal · United Metro Materials Inc · MSHA ID 0202628
    Abandoned
  86. Abc Pit No 1
    Surface metal/non-metal · W R Skousen Contractor Inc · MSHA ID 0201865
    Abandoned
  87. Action Sand & Gravel
    Surface metal/non-metal · Action Sand & Gravel Company · MSHA ID 0201251
    Abandoned
  88. Alpha Exploration
    Underground metal/non-metal · Alpha Exploration LLC · MSHA ID 0203096
    Abandoned
  89. Anamax
    Surface metal/non-metal · Arizona Portland Cement Company · MSHA ID 0201811
    Abandoned
  90. Antelope Pit
    Surface metal/non-metal · Denning Mining Company · MSHA ID 0200039
    Abandoned
  91. Apache Pit Iropox Corp
    Surface metal/non-metal · Garner & Associates · MSHA ID 0201922
    Abandoned
  92. Avra Valley Pit
    Surface metal/non-metal · Ashton Company Inc · MSHA ID 0201890
    Abandoned
  93. Blue Rock Mine
    Underground metal/non-metal · Ritter & Wright Mining Contractor · MSHA ID 0201877
    Abandoned
  94. Cindrich Pit
    Surface metal/non-metal · Cindrich Sand & Gravel Inc · MSHA ID 0201285
    Abandoned
  95. Cottonwood Pit
    Surface metal/non-metal · Young & Sons Contracting Inc · MSHA ID 0203019
    Abandoned
  96. Cyprus Pima Mine Site
    Surface metal/non-metal · Lgr Rock Products · MSHA ID 0202370
    Abandoned
  97. Deliverance
    Surface metal/non-metal · Boyce Box · MSHA ID 0202192
    Abandoned
  98. Dillon & Son
    Surface metal/non-metal · Dillon & Son Inc · MSHA ID 0202301
    Abandoned
  99. Empire Mountain Quarry
    Surface metal/non-metal · Calportland · MSHA ID 0203447
    Intermittent
  100. Esperanza Mill
    Facility metal/non-metal · Duval Corp · MSHA ID 0200856
    Abandoned
  101. Esperanza Mine
    Surface metal/non-metal · Duval Corp · MSHA ID 0200143
    Abandoned
  102. Fico Pit
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0200683
    Abandoned
  103. GOLDEN GREEN
    Surface metal/non-metal · Golden Green Placer Mining · MSHA ID 0202594
    Abandoned
  104. Green Valley Pit
    Surface metal/non-metal · San Xavier Rock & Materials · MSHA ID 0202505
    Abandoned
  105. HCC
    Surface metal/non-metal · Hunter Contracting Company · MSHA ID 0203029
    Abandoned
  106. Hel-Roc Mine & Mill
    Underground metal/non-metal · Hel-Roc Mining Company · MSHA ID 0202027
    Abandoned
  107. Hog Farm
    Surface metal/non-metal · Ashton Company Inc · MSHA ID 0202375
    Abandoned
  108. Hot Boy
    Surface metal/non-metal · Mc Junkin Construction · MSHA ID 0202182
    Abandoned
  109. Houghton Plant
    Surface metal/non-metal · Calmat Company Of Arizona · MSHA ID 0202290
    Abandoned
  110. Ina Road Pit
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0201279
    Abandoned
  111. Industrial Asphalt - 61
    Facility metal/non-metal · Industrial Asphalt · MSHA ID 0202506
    Abandoned
  112. Kerley Quarry
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0201406
    Abandoned
  113. Morning Star Mine
    Surface metal/non-metal · Ernest H Ross · MSHA ID 0202095
    Abandoned
  114. New Cornelia Well
    Underground metal/non-metal · Phelps Dodge Corp · MSHA ID 0201570
    Abandoned
  115. New Jupiter
    Surface metal/non-metal · Apache International Mining · MSHA ID 0202012
    Abandoned
  116. NEW WEST MATERIALS
    Surface metal/non-metal · New West Materials Company Llc · MSHA ID 0202831
    Abandoned
  117. North Pit
    Surface metal/non-metal · B & R Materials Corp · MSHA ID 0201409
    Abandoned
  118. Old Yuma Mine
    Underground metal/non-metal · Consolidated Mining & Milling Lt · MSHA ID 0202184
    Abandoned
  119. Orban Pit
    Surface metal/non-metal · Orban Excavating Inc · MSHA ID 0201236
    Abandoned
  120. Pantano Irvington Road
    Surface metal/non-metal · Ashton Company Inc · MSHA ID 0202188
    Abandoned
  121. Pima Mill
    Facility metal/non-metal · Cyprus Pima Mining Company · MSHA ID 0200853
    Abandoned
  122. Portable Crusher
    Surface metal/non-metal · Papago Materials Company · MSHA ID 0201437
    Abandoned
  123. Portable Crusher No 1
    Surface metal/non-metal · Sundt Corp · MSHA ID 0202522
    Abandoned
  124. Portable Crusher No 2
    Surface metal/non-metal · Sundt Corp · MSHA ID 0202523
    Abandoned
  125. RED GRANITE PIT
    Surface metal/non-metal · Jenott Mining Corp · MSHA ID 0202662
    Abandoned
  126. Rillito Pit Or Rillito
    Surface metal/non-metal · G'S Material & Supply Company · MSHA ID 0201252
    Abandoned
  127. Rita Pit
    Surface metal/non-metal · Ashton Company Inc · MSHA ID 0201906
    Abandoned
  128. Rita Pit
    Surface metal/non-metal · Sunward Materials · MSHA ID 0202281
    Abandoned
  129. Saguaro Rock & Materials
    Surface metal/non-metal · Saguaro Rock & Materials · MSHA ID 0202250
    Abandoned
  130. San Xavier Pit
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0200194
    Abandoned
  131. Sand & Gravel Plant & Pit
    Surface metal/non-metal · Tucson Sand & Soil Inc · MSHA ID 0200707
    Abandoned
  132. Seirrita
    metal/non-metal · Meridian Engineering · MSHA ID 0203546
    New Mine
  133. Sierra Mining Portable 2
    metal/non-metal · Sierra Mining and Crushing LLC · MSHA ID 0203542
    New Mine
  134. Sierrita Mill
    Facility metal/non-metal · Duval Corp · MSHA ID 0200852
    Abandoned
  135. Smithco Portable 2
    Surface metal/non-metal · Smithco Enterprises Inc · MSHA ID 0203442
    Intermittent
  136. SWAN ROAD PIT
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0202592
    Abandoned
  137. Tally And Wall Mine
    Underground metal/non-metal · Ken Pan Ltd · MSHA ID 0202175
    Abandoned
  138. Three Amigos Mine
    metal/non-metal · Three Amigos Mining, LLC · MSHA ID 0203539
    New Mine
  139. Tiger Open Pit Mine
    Surface metal/non-metal · Magma Copper Company · MSHA ID 0201881
    Abandoned
  140. Triple A Pit
    Surface metal/non-metal · G & A Sand & Gravel Inc · MSHA ID 0202391
    Abandoned
  141. Twin Buttes
    Surface metal/non-metal · Joy Manufacturing Company · MSHA ID 0201609
    Abandoned
  142. Twin Buttes No 1 Adit
    Underground metal/non-metal · Soil Sampling Service Inc · MSHA ID 0201794
    Abandoned
  143. UNITED METRO MATERIALS PLANT 26
    Surface metal/non-metal · United Metro Materials Inc · MSHA ID 0202645
    Abandoned
  144. VALENCIA PORTABLE #2 CRUSHER
    Surface metal/non-metal · United Metro Materials Inc · MSHA ID 0202667
    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 ArizonaAll 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.