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MSHA mine register by county

Mines in Pinal County, Arizona

Pinal County, Arizona has 188 mines on MSHA's register: 23 active, 12 intermittent, 143 abandoned. 12 miners have died and 3,025 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 4,549 citations.

Every mine MSHA has registered in Pinal 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 Pinal County →

Mines on register
188
Active
23
Fatalities on record
12
Citations issued
4,549
19 underground · 155 surface · 12 facilities 0 coal · 188 metal and non-metal 12 intermittent 143 abandoned 3,025 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.
Pinal County, Arizona · Population 449,219
0.8%
Mining share of county employment
$77,588
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
Loading map…
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
BHP Copper Inc 7 0 6
CEMEX Construction Materials South, LLC 7 2 0
Arcosa Aggregates West, LLC. 4 1 0
Ashton Company Inc 4 0 0
Mc Farland & Hullinger 4 0 0
Gila River Sand and Gravel Corp 3 2 1
Asarco Inc 3 0 0
Guzman Construction Company 3 0 0
Phoenix San-Man 3 0 0
Rock Pros USA, LLC 3 2 0
Mines in Pinal County188 on register
  1. Santan Pit
    Surface metal/non-metal · Gila River Sand & Gravel Corporation · MSHA ID 0202116
    Active
  2. Cyprus Tohono Corporation
    Surface metal/non-metal · Cyprus Tohono Corp · MSHA ID 0202579
    Active
  3. Omya Arizona
    Surface metal/non-metal · Omya Inc · MSHA ID 0202614
    Active
  4. Superior Pit & Mill
    Surface metal/non-metal · Imerys Perlite USA, Inc · MSHA ID 0201136
    Active
  5. CEMEX-CASA GRANDE
    Surface metal/non-metal · CEMEX Construction Materials South, LLC · MSHA ID 0200717
    Active
  6. Maricopa Pit
    Surface metal/non-metal · Gila River Sand & Gravel · MSHA ID 0203075
    Active
  7. Superior
    Surface metal/non-metal · Rock Pros USA · MSHA ID 0202387
    Active
  8. 1013 Coolidge
    Surface metal/non-metal · Arcosa Aggregates West, LLC. · MSHA ID 0203338
    Active
  9. CEMEX-COOLIDGE
    Surface metal/non-metal · CEMEX Construction Materials South, LLC · MSHA ID 0202896
    Active
  10. Reymert Mine
    Surface metal/non-metal · Gila Rock Products, LLC · MSHA ID 0202977
    Active
  11. Crusher #1
    Surface metal/non-metal · Rock Pros USA, LLC · MSHA ID 0203422
    Active
  12. Diablo Plant # 136
    Surface metal/non-metal · CalPortland Company · MSHA ID 0203350
    Active
  13. QUEEN CREEK PIT
    Surface metal/non-metal · M R TANNER MINING INC · MSHA ID 0203162
    Active
  14. P & P Materials LLC
    Surface metal/non-metal · P & P Materials LLC · MSHA ID 0203191
    Active
  15. TREASURE CHEST GRANITE PIT LLC
    Surface metal/non-metal · Treasure Chest Granite Pit LLC · MSHA ID 0202194
    Active
  16. Queen Creek Stone
    Surface metal/non-metal · CalMat Co. · MSHA ID 0203342
    Active
  17. Feldman #2
    Surface metal/non-metal · Gold Bond Building Products, LLC. · MSHA ID 0202160
    Active
  18. Mine #8
    Surface metal/non-metal · Superstition Crushing LLC · MSHA ID 0203354
    Active
  19. Desert Queen
    Surface metal/non-metal · Desert Queen Quarry LLC · MSHA ID 0203428
    Active
  20. Coolidge Plant 65
    Surface metal/non-metal · Martin Marietta Arizona, LLC · MSHA ID 0203173
    Active
  21. MAXUS3
    Surface metal/non-metal · MAXUS CONSTRUCTION MATERIALS LLC · MSHA ID 0203434
    Active
  22. Ringo Canyon Granite LLC
    Surface metal/non-metal · Ringo Canyon Granite, LLC · MSHA ID 0203356
    Active
  23. Coolidge Plant
    Surface metal/non-metal · Premier Materials Coolidge LLC · MSHA ID 0203471
    Active
  24. San Manuel Mine
    Surface metal/non-metal · BHP Copper Inc · MSHA ID 0200151
    Abandoned
  25. Resolution Mine
    Underground metal/non-metal · Resolution Copper Mining LLC · MSHA ID 0200152
    NonProducing
  26. San Manuel Mill
    Facility metal/non-metal · BHP Copper · MSHA ID 0200842
    Abandoned
  27. ASARCO RAY COMPLEX TUNNEL
    Underground metal/non-metal · ASARCO Incorporated · MSHA ID 0202873
    Abandoned
  28. Cyprus Tohono Corporation
    Underground metal/non-metal · Cyprus Tohono Corp · MSHA ID 0200498
    Abandoned
  29. BHP Open Pit
    Surface metal/non-metal · BHP Copper · MSHA ID 0202251
    Abandoned
  30. 1010 Queen Creek #1
    Surface metal/non-metal · Arcosa Aggregates West, LLC. · MSHA ID 0202821
    Abandoned
  31. Little Hill Mine
    Surface metal/non-metal · Decorative Rock Sales LLC · MSHA ID 0200350
    Abandoned
  32. BHP COPPER
    Facility metal/non-metal · Bhp Copper Inc · MSHA ID 0200791
    Abandoned
  33. Fisher Industries Plant 3
    Surface metal/non-metal · Fisher Sand & Gravel Company · MSHA ID 3200158
    Intermittent
  34. Bonito
    Surface metal/non-metal · Kalamazoo Materials · MSHA ID 0202318
    Abandoned
  35. Walker Butte Mining Company, L.L.C.
    Surface metal/non-metal · Walker Butte Mining Company, L.L.C. · MSHA ID 0202660
    Abandoned
  36. Queen Creek Mine
    Surface metal/non-metal · Arizona Pacific Materials LLC · MSHA ID 0202884
    Abandoned
  37. Queen Creek Plant #42
    Surface metal/non-metal · Martin Marietta Materials, Inc · MSHA ID 0202126
    Abandoned
  38. 1012 Queen Creek #3
    Surface metal/non-metal · Arcosa Aggregates West, LLC. · MSHA ID 0202663
    Temporarily Idled
  39. Diablo #1
    Surface metal/non-metal · Diablo Sand & Gravel LLC · MSHA ID 0203105
    Abandoned
  40. CEMEX - QUEEN CREEK
    Surface metal/non-metal · CEMEX Construction Materials South LLC · MSHA ID 0202316
    Abandoned
  41. Universal Materials Skousen Pit
    Surface metal/non-metal · Universal Materials Inc · MSHA ID 0202940
    Abandoned
  42. Queen Creek Wash Plant
    Surface metal/non-metal · Holcim-WCR, Inc · MSHA ID 0203318
    Abandoned
  43. Phx San-Man Coolidge Plant
    Surface metal/non-metal · Phoenix San-Man · MSHA ID 0202842
    Abandoned
  44. SUPERIOR MARBLE
    Surface metal/non-metal · Superior Marble, LLC · MSHA ID 0202921
    Abandoned
  45. CEMEX - MARICOPA
    Surface metal/non-metal · CEMEX Construction Materials South LLC · MSHA ID 0202355
    Abandoned
  46. San Manuel Sx-Ew Plant
    Facility metal/non-metal · BHP Copper · MSHA ID 0202264
    Abandoned
  47. PR GYPSUM - WINKELMAN MINE
    Surface metal/non-metal · PR Gypsum, LLC · MSHA ID 0200165
    Abandoned
  48. Sacaton Unit
    Surface metal/non-metal · Asarco Inc · MSHA ID 0200484
    Abandoned
  49. Sacaton Unit Mill
    Facility metal/non-metal · Asarco Inc · MSHA ID 0201405
    Abandoned
  50. Amrize Crusher #2
    Surface metal/non-metal · AMRIZE WEST CENTRAL INC. · MSHA ID 0203328
    Temporarily Idled
  51. Nord Sil Flo (Nord Perlite)
    Surface metal/non-metal · Nord Sil-Flo (Nord Perlite) · MSHA ID 0201008
    Abandoned
  52. Broccoli
    Surface metal/non-metal · Rock Pros USA · MSHA ID 0203027
    Intermittent
  53. Coolidge Plant 4
    Surface metal/non-metal · CalPortland Company · MSHA ID 0203081
    Abandoned
  54. QUEEN CREEK
    Surface metal/non-metal · B & S Enterprises · MSHA ID 0202737
    Abandoned
  55. TEE PEE SAND & GRAVEL
    Surface metal/non-metal · Tee Pee Sand & Gravel · MSHA ID 0202898
    Intermittent
  56. Desert Gold Pit
    Surface metal/non-metal · Able Earth Extraction Inc · MSHA ID 0202700
    Abandoned
  57. 1011 Queen Creek #2
    Surface metal/non-metal · Southwest Rock Products · MSHA ID 0203402
    Abandoned
  58. PORTABLE PLANT #2
    Surface metal/non-metal · M R TANNER MINING INC · MSHA ID 0203135
    Abandoned
  59. 1024 San Tan Valley
    Surface metal/non-metal · Arcosa Aggregates West, LLC · MSHA ID 0203493
    Intermittent
  60. White Cliffs Mine & Plant
    Surface metal/non-metal · St. Cloud Mining Co · MSHA ID 0202342
    Abandoned
  61. FLORENCE PLANT #43
    Surface metal/non-metal · Hanson Aggregates Of Arizona Inc · MSHA ID 0202676
    Abandoned
  62. New Superior Quarry (*Abandoned)
    Surface metal/non-metal · Kalamazoo Materials Inc · MSHA ID 0202948
    Abandoned
  63. 77-02
    Surface metal/non-metal · Fnf Construction Inc · MSHA ID 0202551
    Abandoned
  64. AZ Central Landscape Materials
    Surface metal/non-metal · AZ Central Landscape Materials · MSHA ID 0202415
    Abandoned
  65. Portable # 4
    Surface metal/non-metal · Southwest Rock Products LLC · MSHA ID 0203280
    Abandoned
  66. Apache Mine
    Surface metal/non-metal · Apache Mining & Development Inc · MSHA ID 0202185
    Abandoned
  67. CEMEX - FLORENCE
    Surface metal/non-metal · CEMEX Construction Materials South LLC · MSHA ID 0203020
    Abandoned
  68. Reymert Mine
    Surface metal/non-metal · Inspiration Mines Inc · MSHA ID 0201730
    Abandoned
  69. SAN MANUEL LIME & FLUX
    Facility metal/non-metal · Bhp Copper Inc · MSHA ID 0201391
    Abandoned
  70. The Old Wasp Mine
    Surface metal/non-metal · The Old Wasp Mine · MSHA ID 0203246
    Abandoned
  71. CEMEX - SACATON
    Surface metal/non-metal · CEMEX Construction Materials South LLC · MSHA ID 0203023
    Abandoned
  72. Red Hills Mine
    Surface metal/non-metal · Red Hills Mining, LLC · MSHA ID 0202959
    Abandoned
  73. SILVER KING MINE
    Underground metal/non-metal · Silver King Mining · MSHA ID 0202859
    Abandoned
  74. Mine #6
    Surface metal/non-metal · Superstition Crushing, LLC · MSHA ID 0203284
    Intermittent
  75. RINKER MATERIALS COOLIDGE
    Surface metal/non-metal · RINKER MATERIALS · MSHA ID 0200719
    Abandoned
  76. Martin Group Properties Pit #525
    Surface metal/non-metal · T D Martin Group Sand LLC · MSHA ID 0203032
    Abandoned
  77. APACHE JCT GRANITE PITS
    Surface metal/non-metal · A & A Materials Inc · MSHA ID 0201268
    Abandoned
  78. Arizona White Rock
    Surface metal/non-metal · Arizona White Rock · MSHA ID 0203225
    Abandoned
  79. CEMEX - QUEEN CREEK
    Surface metal/non-metal · CEMEX Construction Materials South LLC · MSHA ID 0202957
    Abandoned
  80. White Cross Mine
    Surface metal/non-metal · CALPORTLAND COMPANY · MSHA ID 0201940
    Intermittent
  81. Aggregate Products
    Surface metal/non-metal · Robson Ranch Arizona Const · MSHA ID 0203041
    Abandoned
  82. Plant # 1
    Surface metal/non-metal · Gila Rock Products · MSHA ID 0203408
    Intermittent
  83. G T R Sand Washing
    Surface metal/non-metal · Global Timber & Resources Corp. (GTR Corp) · MSHA ID 0203148
    Abandoned
  84. AZ Best LLC
    Surface metal/non-metal · AZ Best LLC · MSHA ID 0203190
    Abandoned
  85. Apache Land Mine
    Surface metal/non-metal · J & A Mining Corp · MSHA ID 0201964
    Abandoned
  86. BHP COPPER FLORENCE MINE
    Surface metal/non-metal · Bhp Copper Inc · MSHA ID 0202703
    Abandoned
  87. Black Hills
    Surface metal/non-metal · Mc Farland & Hullinger · MSHA ID 0201334
    Abandoned
  88. East Valley Materials
    Surface metal/non-metal · Pearce Development Company · MSHA ID 0202210
    Abandoned
  89. Feldman Gypsum Quarry Phoenix Plant
    Surface metal/non-metal · Gold Bond Building Products · MSHA ID 0200163
    Abandoned
  90. Maricopa Plant
    Surface metal/non-metal · Vulcan Asphalt LLC · MSHA ID 0203368
    Intermittent
  91. Sand And Gravel Pit
    Surface metal/non-metal · Pinal Materials Company Inc · MSHA ID 0200686
    Abandoned
  92. Sx-Ew Expansion
    Facility metal/non-metal · Bechtel Construction Inc · MSHA ID 0202379
    Abandoned
  93. Tee Pee Ready-Mix Incorporated
    Surface metal/non-metal · Silver State Materials Corp · MSHA ID 0202115
    Abandoned
  94. PORTABLE CRUSHER
    Surface metal/non-metal · Adair Mining & Construction · MSHA ID 0202705
    Abandoned
  95. SMS
    Surface metal/non-metal · Superior Materials · MSHA ID 0203430
    Temporarily Idled
  96. Got Rock 1
    Surface metal/non-metal · J & D Excavators Inc · MSHA ID 0203204
    Abandoned
  97. Albo Guzman Sand and Gravel
    Surface metal/non-metal · Albert E Guzman · MSHA ID 0203108
    Abandoned
  98. Coolidge Sand & Rock
    Surface metal/non-metal · Coolidge Sand & Rock · MSHA ID 0203039
    Abandoned
  99. MAMMOTH
    Surface metal/non-metal · Metro Materials Globe · MSHA ID 0200656
    Abandoned
  100. Sonora Rock & Sand-Coolidge LLC
    Surface metal/non-metal · Sonora Environmental LLC · MSHA ID 0203155
    Abandoned
  101. Superior Materials Inc
    Surface metal/non-metal · Superior Materials Inc · MSHA ID 0203391
    Abandoned
  102. 1008 Higley Site
    Surface metal/non-metal · White Mountain Properties · MSHA ID 0203395
    Abandoned
  103. Plant #2 - Queen Creek
    Surface metal/non-metal · Arizona Materials LLC · MSHA ID 0203049
    Abandoned
  104. Pioneer Sand-Sacaton Plant
    Surface metal/non-metal · Pioneer Sand Company · MSHA ID 0203031
    Abandoned
  105. PORTABLE CRUSHER #54
    Surface metal/non-metal · Hanson Aggregates Of Arizona Inc · MSHA ID 0202616
    Abandoned
  106. San Tan Plant
    Surface metal/non-metal · Vulcan Asphalt LLC · MSHA ID 0203380
    Intermittent
  107. Coolidge Plant
    Facility metal/non-metal · Pinal Harvesting · MSHA ID 0202765
    Abandoned
  108. Queen Creek Plant
    Surface metal/non-metal · Salt River Sand & Rock · MSHA ID 0203011
    Abandoned
  109. Coolidge-Plant #18
    Surface metal/non-metal · Phoenix San-Man · MSHA ID 0203076
    Abandoned
  110. PORTABLE CRUSHER #22
    Surface metal/non-metal · Superstition Crushing Llc · MSHA ID 0202809
    Abandoned
  111. Portable Crusher No. 2
    Surface metal/non-metal · Rango Inc. · MSHA ID 0203496
    Temporarily Idled
  112. Blackwater Pit
    Surface metal/non-metal · Gila River Sand and Gravel Corp · MSHA ID 0203494
    Intermittent
  113. CHANDLER READY MIX MINE #2
    Surface metal/non-metal · Chandler Ready Mix Inc · MSHA ID 0201917
    Abandoned
  114. MAXUS5 - MR TANNER RANKIN PIT FLORENCE
    Surface metal/non-metal · MAXUS CONSTRUCTION MATERIALS LLC · MSHA ID 0203527
    Intermittent
  115. Portable #3
    Surface metal/non-metal · Granite Construction Company · MSHA ID 0202590
    Abandoned
  116. Tanner/Rankin Pit
    Surface metal/non-metal · M.R. Tanner Rock and Sand LLC · MSHA ID 0203106
    Abandoned
  117. TURNING POINT MINE
    Surface metal/non-metal · Turning Point Rock Llc · MSHA ID 0202836
    Abandoned
  118. A D O T Pit #7380
    Surface metal/non-metal · Ashton Company Inc · MSHA ID 0202004
    Abandoned
  119. Adot Pit #5559
    Surface metal/non-metal · Ashton Company Inc · MSHA ID 0202050
    Abandoned
  120. Allevia Mine
    Underground metal/non-metal · Diversified International · MSHA ID 0202032
    Abandoned
  121. Apache Tears Mine
    Surface metal/non-metal · Guzman Construction Company · MSHA ID 0201464
    Abandoned
  122. Aravaipa Pitt
    Surface metal/non-metal · Mc Farland & Hullinger · MSHA ID 0202410
    Abandoned
  123. Arizona Mine
    Surface metal/non-metal · Arizona Mining Co · MSHA ID 0202560
    Abandoned
  124. Arroyo Rock Portable
    Surface metal/non-metal · Ashton Company Inc · MSHA ID 0201566
    Abandoned
  125. AURTHUR HAROLD FARTHING
    Underground metal/non-metal · Arthur Harold Farthing · MSHA ID 0202869
    Abandoned
  126. Biosphere 2 Crushing Sun Space Ranch
    Surface metal/non-metal · Ashton Company Inc · MSHA ID 0202420
    Abandoned
  127. C-West Company Marble Quarry
    Surface metal/non-metal · C-West Company · MSHA ID 0202525
    Abandoned
  128. Camp Grant Open Pit
    Surface metal/non-metal · Magma Copper Company · MSHA ID 0200017
    Abandoned
  129. Casa Grande
    metal/non-metal · PAP LLC · MSHA ID 0203552
    New Mine
  130. CATALINA ROCK & SAND INC
    Surface metal/non-metal · Catalina Rock & Sand Inc · MSHA ID 0202534
    Abandoned
  131. Chakaverde Mining Company
    Surface metal/non-metal · Chakaverde Mining Company · MSHA ID 0202048
    Abandoned
  132. Chilito Mine
    Surface metal/non-metal · Terra Industries Inc · MSHA ID 0202575
    Abandoned
  133. Clark-Oliver #8
    Surface metal/non-metal · Clark-Oliver Mining Company Inc · MSHA ID 0201984
    Abandoned
  134. Coolidge Pit
    Surface metal/non-metal · Suncore Construction and Materials, Inc. · MSHA ID 0203510
    Intermittent
  135. Coolidge Pit #7380
    Surface metal/non-metal · W R Skousen Contractor Inc · MSHA ID 0201863
    Abandoned
  136. Coronado Facility
    Surface metal/non-metal · Inter Mountain Minerals Inc · MSHA ID 0201963
    Abandoned
  137. Goldberg
    Underground metal/non-metal · Copper Kettle Mining Company · MSHA ID 0202044
    Abandoned
  138. Golden Dam Pit
    Surface metal/non-metal · Monte Vista Aggregates · MSHA ID 0202254
    Abandoned
  139. Golden Hillside
    Surface metal/non-metal · S S International Trade Inc · MSHA ID 0202056
    Abandoned
  140. Golder Pit #2
    Surface metal/non-metal · Arroya Rock & Materials Inc · MSHA ID 0202371
    Abandoned
  141. HANNA PIT
    Surface metal/non-metal · Rock Aggregate & Materials Inc · MSHA ID 0202808
    Abandoned
  142. Kennecott Lime Quarry
    Surface metal/non-metal · Kennecott Minerals Company · MSHA ID 0200016
    Abandoned
  143. King Tut Mine
    Underground metal/non-metal · Silver Bullet Holdings Inc · MSHA ID 0203533
    New Mine
  144. Lakeshore Mill
    Facility metal/non-metal · Hecla Mining Company · MSHA ID 0201137
    Abandoned
  145. Lee Pit
    Surface metal/non-metal · Pinal County Highway Department · MSHA ID 0201743
    Abandoned
  146. Little Nugget
    Surface metal/non-metal · Paradise Mines Inc · MSHA ID 0202037
    Abandoned
  147. Ls & A Mine
    Underground metal/non-metal · Tobacco Root Mining Company Inc · MSHA ID 0202385
    Abandoned
  148. Magma Mine
    Underground metal/non-metal · Oracle Drilling Company Inc · MSHA ID 0201735
    Abandoned
  149. Magma San Manuel Mng Opers-Mine Dvlpmt-K
    Underground metal/non-metal · Cementation West Inc · MSHA ID 0200793
    Abandoned
  150. Mammoth Mine
    Underground metal/non-metal · Brace Resources Inc · MSHA ID 0202218
    Abandoned
  151. Mammoth Mine
    Surface metal/non-metal · Western Labs & Engineering · MSHA ID 0202421
    Abandoned
  152. Mineral Butte
    Surface metal/non-metal · Mineral Creek Joint Venture · MSHA ID 0202275
    Abandoned
  153. Mobile Screening Plant #20
    Surface metal/non-metal · Phoenix San-Man · MSHA ID 0203158
    Abandoned
  154. North Star Mine
    Surface metal/non-metal · Grande Mining Corp · MSHA ID 0202282
    Abandoned
  155. Old Eagle (Mine)
    Underground metal/non-metal · Arizona Mines Development Inc · MSHA ID 0201487
    Abandoned
  156. Old Reliable Mine
    Surface metal/non-metal · Ranchers Exploration & Development Corp · MSHA ID 0200759
    Abandoned
  157. Old Wasp Mining Company
    Surface metal/non-metal · Old Wasp Mining Company · MSHA ID 0202274
    Abandoned
  158. Orizaba Mine
    Surface metal/non-metal · Robart Mining Company · MSHA ID 0200292
    Abandoned
  159. Paradise Mine & Mill Site
    Surface metal/non-metal · Buchanan Trucking & Mining · MSHA ID 0203087
    Abandoned
  160. Perlite Company
    Surface metal/non-metal · Perlite Company · MSHA ID 0202273
    Abandoned
  161. Perlite Pits
    Surface metal/non-metal · Filters International Inc · MSHA ID 0201006
    Abandoned
  162. Pit #1
    Surface metal/non-metal · Aztek Sand & Rock · MSHA ID 0202258
    Abandoned
  163. Plant No 9
    Surface metal/non-metal · Pinal Materials Company Inc · MSHA ID 0201233
    Abandoned
  164. Portable Wash Plant
    Surface metal/non-metal · Bismarck Sand & Gravel Inc · MSHA ID 0202547
    Abandoned
  165. Queen Creek Pit
    Surface metal/non-metal · Connolly-Pacific Company · MSHA ID 0202144
    Abandoned
  166. Queen Pit And Superior Pit
    Surface metal/non-metal · Guzman Construction Company · MSHA ID 0200660
    Abandoned
  167. Ray Silicate Plant
    Facility metal/non-metal · Kennecott Minerals Company · MSHA ID 0200849
    Abandoned
  168. Sacaton Pit
    Surface metal/non-metal · Nesbitt Contracting Company Inc · MSHA ID 0201867
    Abandoned
  169. Sacaton Production Shaft
    Underground metal/non-metal · Harrison Western Corp · MSHA ID 0201556
    Abandoned
  170. Sacaton Shafts
    Underground metal/non-metal · Asarco Inc · MSHA ID 0201979
    Abandoned
  171. San Manuel Engineering And Technica
    Facility metal/non-metal · Magma Copper Company · MSHA ID 0201844
    Abandoned
  172. San Manuel Mine
    Underground metal/non-metal · Oracle Drilling Company Inc · MSHA ID 0201493
    Abandoned
  173. Sand And Gravel Pit And Plant
    Surface metal/non-metal · Saguard Concrete Company · MSHA ID 0200695
    Abandoned
  174. Santa Cruz Copper Project
    Underground metal/non-metal · Mesa Cobre Holding Corp · MSHA ID 0203541
    New Mine
  175. SANTA CRUZ PROJECT
    Facility metal/non-metal · Asarco Santa Cruz Inc · MSHA ID 0202650
    Abandoned
  176. Silica Mill
    Facility metal/non-metal · Mc Farland & Hullinger · MSHA ID 0201028
    Abandoned
  177. Silica Quarry
    Surface metal/non-metal · Mc Farland & Hullinger · MSHA ID 0200782
    Abandoned
  178. SILVER KING
    Underground metal/non-metal · Silver King Mining · MSHA ID 0202686
    Abandoned
  179. Silver King Mine
    Surface metal/non-metal · Guzman Construction Company · MSHA ID 0201981
    Abandoned
  180. Sundt #1
    Surface metal/non-metal · Sundt Construction Inc. · MSHA ID 0203506
    Temporarily Idled
  181. Thunderbird Mine
    Surface metal/non-metal · Pinal Mammoth Gypsum · MSHA ID 0200161
    Abandoned
  182. TIERRA DEL ORO
    Surface metal/non-metal · Tierra Del Oro · MSHA ID 0202465
    Abandoned
  183. V & M Mine
    Underground metal/non-metal · Energy Fuels Nuclear Inc · MSHA ID 0202068
    Abandoned
  184. Vekol Mine
    Surface metal/non-metal · Vekol Company · MSHA ID 0201808
    Abandoned
  185. Vekol Mine
    Surface metal/non-metal · Argosy Mining Company · MSHA ID 0202209
    Abandoned
  186. White Cross Pit
    metal/non-metal · Spencer Materials · MSHA ID 0203543
    New Mine
  187. Whitecliff Claims
    Surface metal/non-metal · Whitecliff Industries Inc · MSHA ID 0202257
    Abandoned
  188. Young & Sons Construction Incorporated
    Surface metal/non-metal · Young & Sons Construction Inc · MSHA ID 0202213
    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.

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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.