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Superior

Past Producer in Pinal county in Arizona, United States with commodities Copper, Gold, Silver, Lead, Zinc, Manganese, Arsenic, Bismuth, Cadmium, Iron, Silica, Molybdenum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Mineral rights holdings
  18. Land status
  19. Ownership information
  20. Production statistics
  21. Reserves and resources
  22. Workings at the site
  23. Links to other databases
  24. Bibliographic references
  25. General comments
  26. Reporter information

Geologic information

Identification information

Deposit ID 10137553
MRDS ID M899885
MAS/MILS ID 0040210038
Record type Deposit
Current site name Superior
Alternate or previous names Silver Queen Mine, Magma Superior Mine, Magma Mine, Superior Mine, Magma Copper Mine, Superior Copper Mine

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -111.0651, 33.30539 (WGS84)
Elevation 1270
Location accuracy 100(meters)
Relative position 4 km ENE of Superior, AZ.

Site location context

Political divisions (FIPS codes)

Pinal(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Superior(quadrangle 1:24,000 scale)

Mesa(quadrangle 1:100,000 scale)

Mesa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Gila(hydrologic unit)

Middle Gila(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Tonto National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Arizona Pinal

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 001 S 013 E 32 NW Arizona

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Primary
Lead Secondary
Zinc Critical Secondary
Manganese Critical Secondary
Arsenic Critical Tertiary
Bismuth Critical Tertiary
Cadmium Tertiary
Iron Tertiary
Silica Tertiary
Molybdenum Primary

Materials information

Materials Type of material
Chrysocolla Ore
Coronadite Ore
Cuprite Ore
Famatinite Ore
Hemimorphite Ore
Hydrozincite Ore
Malachite Ore
Manganite Ore
Psilomelane Ore
Rhodochrosite Ore
Silver Ore
Chalcocite Ore
Chalcopyrite Ore
Enargite Ore
Gold Ore
Tennantite Ore
Bornite Ore
Hematite Gangue
Calcite Gangue
Limonite Gangue
Dolomite Gangue
Magnetite Gangue
Stromeyerite Gangue
Galena Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown
Barite Unknown

Alteration

  • (Local) Serpentinization & Uralitization
  • (Local) Sericitization
  • (Local) All mined ore has been oxidized

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Paleocene
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Pinal Schist, Dripping Springs Quartzite, Apache Group-Mescal Limestone; Martin Limestone; Apache Basalt
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Troy Quartzite; Martin Limestone

Nearby scientific data

Main Entrance (1) -111.0651, 33.30539
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure name N-S Trending Fault System, N-S Trending Sediments with E Dip
Type of structure Local
Structure name E-W Faulting, Off of N-S Trending Main Fault
Type of structure Regional
Structure name Mineralized EW to NW Trending Faults

Ore body information

  • Name Resolution Porphyry
    General form Tabular
    Strike N00S
    Dip 30E
    Thickness 6M
    Length 1200M
    Width 590M
    Area 140HA
    Depth to top 1180M
    Field Value
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 OTHER
    Shape of Orebody #2 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control BEDDING
    Secondary Ore Control FOLDING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 OTHER
    Strike And Dip N00S:30E
    Minimum Depth to Top 610
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 140
    Previous Surface Area (HA) 140
    Date of Last Modification 910919
  • Strike Mainly along E-W faults
    Dip 70-80 N
    Plunge W
    Thickness 1493.52M
    Length 2651.76M
    Width 152.4M
    Depth to top 121.92M
    Depth to bottom 4900M

Controls for ore emplacement

  • E-W Faults, Fault Breccia, Quartz-Limestone Contact
  • Stratigraphy, Folding

Comments on the geologic information

  • The Magma Mine at Superior:
    Mineralization Associated With Diorite Porphyry Intrusive Period, Although Little Intrusive Rock Is Present Here. Major Intrusive Is 2 Miles N. At Silver King, Faults Are Premineralization, And Faults Continued To Move During The Short Period Between Porphyry Intrusion And Mineral Deposition. Ore Deposition Was Mesothermal, And Mineralogy And Occurrence Of Ore Is Similar To Deposits Of Butte, Montana. The Magma Is Not Similar To Nearby Porphyry Copper Deposits As There Is Little Disseminated Ore In Porphyry Host Rock, But The Age Of Mineralization Is The Same As Nearby Deposits Such As The Globe And Miami, Approximately 60 M.Y.
  • Although There Are No Surface Intrusives, Mineralization Is Associated With Cret-Paleo Intrusive And Faulting Episodes

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant Yes
Discovery year 1874
Discoverer Charles C. Mason
Mining method Filled Stopes - Other Filled Stope Methods
Year of first production 1907
Year of last production 1996
Milling method Flotation

Mining district

District name Pioneer

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Fee Ownership
Type of mineral rights Unknown

Land status

Ownership category Private
Ownership category National Forest

Ownership information

  • Type Operator
    Owner BHP Copper Inc.
    Interest 100
    Home office Arizona
    Year 1996
    First year 1994
    Last year 1999
  • Type Owner
    Owner Broken Hill Proprietary Co. Ltd.
    Interest 100
    Home office Australia
    Year 1996
    First year 1994
  • Type Owner-Operator
    Owner Magma Copper Co.
    ID 0200152
    Interest 100
    Home office Arizona
    Year 1988
    Last year 1994
  • Type Owner
    Owner Superior Ray Copper Co.
    Year 1917
  • Type Joint Venture Operator
    Owner Rio Tinto plc
    Interest 55
    Home office London, UK
    Year 2009
  • Type Joint Venture Owner
    Owner BHP Billtion Group
    Interest 45
    Year 2009
    First year 1999

Production statistics

  • Year 1905
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 32wt-pct
    Primary Ag Silver Silver 62g/mt
  • Year 1907
    Material Ore
    Ore mined 192mt
    Description 192 44 433 1 192 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 44mt
    Silver Silver Silver 433000g
    Gold Gold Gold 1000g
  • Year 1911
    Material Ore
    Ore mined 117mt
    Description 117 31 117 Mt Ore,Mt Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 31mt
  • Year 1912
    Material Ore
    Ore mined 10092mt
    Description 10092 501 1996 6 10092 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 501mt
    Gold Gold Gold 6000g
    Silver Silver Silver 1996000g
  • Year 1913
    Material Ore
    Ore mined 12823mt
    Description 12823 635 2155 4 12823 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 635mt
    Gold Gold Gold 4000g
    Silver Silver Silver 2155000g
  • Year 1914
    Material Ore
    Ore mined 17161mt
    Description 17161 1000 3680 16 17161 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 1000mt
    Gold Gold Gold 16000g
    Silver Silver Silver 3680000g
  • Year 1915
    Material Ore
    Ore mined 53723mt
    Description 53723 2743 11385 61 53723 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 2743mt
    Gold Gold Gold 61000g
    Silver Silver Silver 11385000g
  • Year 1916
    Material Ore
    Ore mined 85102mt
    Description 85102 3844 15755 99 85102 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 3844mt
    Gold Gold Gold 99000g
    Silver Silver Silver 15755000g
  • Year 1917
    Material Ore
    Ore mined 97550mt
    Description 97550 4604 16734 186 97550 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 4604mt
    Gold Gold Gold 186000g
    Silver Silver Silver 16734000g
  • Year 1918
    Material Ore
    Ore mined 81939mt
    Description 81939 4976 14417 177 81939 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 4976mt
    Gold Gold Gold 177000g
    Silver Silver Silver 14417000g
  • Year 1919
    Material Ore
    Ore mined 80883mt
    Description 80883 4400 12963 142 80883 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 4400mt
    Gold Gold Gold 142000g
    Silver Silver Silver 12963000g
  • Year 1920
    Material Ore
    Ore mined 91510mt
    Description 91510 4017 9432 138 91510 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 4017mt
    Gold Gold Gold 138000g
    Silver Silver Silver 9432000g
  • Year 1921
    Material Ore
    Ore mined 19455mt
    Description 19455 920 1860 25 19455 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 920mt
    Gold Gold Gold 25000g
    Silver Silver Silver 1860000g
  • Year 1922
    Material Ore
    Ore mined 898mt
    Description 898 63 13 1 898 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 63mt
    Gold Gold Gold 1000g
    Silver Silver Silver 13000g
  • Year 1923
    Material Ore
    Ore mined 71568mt
    Description 71568 3156 6348 80 71568 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 3156mt
    Gold Gold Gold 80000g
    Silver Silver Silver 6348000g
  • Year 1924
    Material Ore
    Ore mined 201676mt
    Description 201676 10570 16585 236 201676 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 10570mt
    Gold Gold Gold 236000g
    Silver Silver Silver 16585000g
  • Year 1925
    Material Ore
    Ore mined 208089mt
    Description 208089 12257 22391 283 208089 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 283000g
    Copper Copper Copper 12257mt
    Silver Silver Silver 22391000g
  • Year 1926
    Material Ore
    Ore mined 225698mt
    Description 225698 13187 24838 281 225698 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 281000g
    Copper Copper Copper 13187mt
    Silver Silver Silver 24838000g
  • Year 1927
    Material Ore
    Ore mined 201266mt
    Description 201266 12486 24439 223 201266 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 223000g
    Copper Copper Copper 12486mt
    Silver Silver Silver 24439000g
  • Year 1928
    Material Ore
    Ore mined 238677mt
    Description 238677 15980 28523 270 238677 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 270000g
    Copper Copper Copper 15980mt
    Silver Silver Silver 28523000g
  • Year 1929
    Material Ore
    Ore mined 244560mt
    Description 244560 16565 32079 319 244560 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 319000g
    Copper Copper Copper 16565mt
    Silver Silver Silver 32079000g
  • Year 1930
    Material Ore
    Ore mined 228497mt
    Description 228497 14315 25816 265 228497 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 265000g
    Copper Copper Copper 14315mt
    Silver Silver Silver 25816000g
  • Year 1931
    Material Ore
    Ore mined 210344mt
    Description 210344 13046 21821 234 210344 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 13046mt
    Silver Silver Silver 21821000g
    Gold Gold Gold 234000g
  • Year 1932
    Material Ore
    Ore mined 135181mt
    Description 135181 9832 15117 160 135181 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 9832mt
    Silver Silver Silver 15117000g
    Gold Gold Gold 160000g
  • Year 1933
    Material Ore
    Ore mined 131929mt
    Description 131929 8904 14724 143 131929 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 8904mt
    Silver Silver Silver 14724000g
    Gold Gold Gold 143000g
  • Year 1934
    Material Ore
    Ore mined 239585mt
    Description 239585 14355 22199 283 239585 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 14355mt
    Silver Silver Silver 22199000g
    Gold Gold Gold 283000g
  • Year 1935
    Material Ore
    Ore mined 235465mt
    Description 235465 13486 19466 269 235465 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 13486mt
    Gold Gold Gold 269000g
    Silver Silver Silver 19466000g
  • Year 1936
    Material Ore
    Ore mined 248630mt
    Description 248630 13736 17173 247 248630 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 13736mt
    Gold Gold Gold 247000g
    Silver Silver Silver 17173000g
  • Year 1937
    Material Ore
    Ore mined 274299mt
    Description 274299 14082 15788 284 274299 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 14082mt
    Gold Gold Gold 284000g
    Silver Silver Silver 15788000g
  • Year 1938
    Material Ore
    Ore mined 303573mt
    Description 303573 14584 14515 269 303573 Mt Ore,Mt Cu,Kg Ag,Kg Au - 438 Mt Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 14584mt
    Gold Gold Gold 269000g
    Silver Silver Silver 14515000g
    Zinc Zinc Zinc 438mt
  • Year 1939
    Material Ore
    Ore mined 330474mt
    Description 330474 15453 18649 361 330474 Mt Ore,Mt Cu,Kg Ag,Kg Au - 1933 Mt Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 15453mt
    Gold Gold Gold 361000g
    Silver Silver Silver 18649000g
    Zinc Zinc Zinc 1933mt
  • Year 1940
    Material Ore
    Ore mined 342941mt
    Description 342941 15551 19577 352 342941 Mt Ore,Mt Cu,Kg Ag,Kg Au - 2718 Mt Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 15551mt
    Gold Gold Gold 352000g
    Silver Silver Silver 19577000g
    Zinc Zinc Zinc 2718mt
  • Year 1941
    Material Ore
    Ore mined 367903mt
    Description 367903 16853 19632 365 367903 Mt Ore,Mt Cu,Kg Ag,Kg Au - 3500 Mt Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 16853mt
    Gold Gold Gold 365000g
    Silver Silver Silver 19632000g
    Zinc Zinc Zinc 3500mt
  • Year 1941
    Period 1907-1941
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 10wt-pct
  • Year 1942
    Material Ore
    Ore mined 404149mt
    Description 404149 18322 17026 399 404149 Mt Ore,Mt Cu,Kg Ag,Kg Au - 3318 Mt Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 18322mt
    Gold Gold Gold 399000g
    Silver Silver Silver 17026000g
    Zinc Zinc Zinc 3318mt
  • Year 1943
    Period 1912-1943
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Au Gold Gold 1g/mt
    Primary Ag Silver Silver 84g/mt
  • Year 1943
    Material Ore
    Ore mined 376230mt
    Description 376230 16885 12703 348 376230 Mt Ore,Mt Cu,Kg Ag,Kg Au - 3529 Mt Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 16885mt
    Gold Gold Gold 348000g
    Silver Silver Silver 12703000g
    Zinc Zinc Zinc 3529mt
  • Year 1943
    Period 1911-1943
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 6g/mt
  • Year 1944
    Material Ore
    Ore mined 276331mt
    Description 276331 10661 8805 219 276331 Mt Ore,Mt Cu,Kg Ag,Kg Au - 3326 Mt Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 10661mt
    Gold Gold Gold 219000g
    Silver Silver Silver 8805000g
    Zinc Zinc Zinc 3326mt
  • Year 1945
    Material Ore
    Ore mined 161219mt
    Description 161219 7617 6539 168 161219 Mt Ore,Mt Cu,Kg Ag,Kg Au - 1968 Mt Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 168000g
    Copper Copper Copper 7617mt
    Silver Silver Silver 6539000g
    Zinc Zinc Zinc 1968mt
  • Year 1946
    Material Ore
    Ore mined 182193mt
    Description 182193 10697 7526 235 182193 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 235000g
    Copper Copper Copper 10697mt
    Silver Silver Silver 7526000g
  • Year 1947
    Material Ore
    Ore mined 225985mt
    Description 225985 13398 8743 263 225985 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 263000g
    Copper Copper Copper 13398mt
    Silver Silver Silver 8743000g
  • Year 1948
    Material Ore
    Ore mined 272702mt
    Description 272702 17132 9666 321 272702 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 321000g
    Copper Copper Copper 17132mt
    Silver Silver Silver 9666000g
  • Year 1949
    Material Ore
    Ore mined 345567mt
    Description 345567 18600 11552 359 345567 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 359000g
    Copper Copper Copper 18600mt
    Silver Silver Silver 11552000g
  • Year 1950
    Material Ore
    Ore mined 384164mt
    Description 384164 21903 16097 443 384164 Mt Ore,Mt Cu,Kg Ag,Kg Au - 4890 Mt Zn Conc
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 443000g
    Copper Copper Copper 21903mt
    Silver Silver Silver 16097000g
    Zinc Zinc Zinc 4890mt
  • Year 1951
    Material Ore
    Ore mined 385635mt
    Description 385635 16508 15279 341 385635 Mt Ore,Mt Cu,Kg Ag,Kg Au - 11456 Mt Zn Conc
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 341000g
    Copper Copper Copper 16508mt
    Silver Silver Silver 15279000g
    Zinc Conc. Zinc Zinc 11456mt
  • Year 1952
    Material Ore
    Ore mined 362467mt
    Description 362467 15998 16931 347 362467 Mt Ore,Mt Cu,Kg Ag,Kg Au - 7941 Mt Zn Conc
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 347000g
    Copper Copper Copper 15998mt
    Silver Silver Silver 16931000g
    Zinc Conc. Zinc Zinc 7841mt
  • Year 1953
    Material Ore
    Ore mined 391680mt
    Description 391680 22516 18863 393 391680 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 393000g
    Copper Copper Copper 22516mt
    Silver Silver Silver 18863000g
  • Year 1954
    Material Ore
    Ore mined 420861mt
    Description 420861 24579 19403 374 420861 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 24579mt
    Silver Silver Silver 19403000g
    Gold Gold Gold 374000g
  • Year 1955
    Material Ore
    Ore mined 415930mt
    Description 415930 21723 14996 351 415930 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 21723mt
    Silver Silver Silver 14996000g
    Gold Gold Gold 351000g
  • Year 1956
    Material Ore
    Ore mined 411579mt
    Description 411579 21669 15276 362 411579 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 21669mt
    Gold Gold Gold 362000g
    Silver Silver Silver 15276000g
  • Year 1957
    Material Ore
    Ore mined 382957mt
    Description 382957 19755 17104 397 382957 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 19755mt
    Gold Gold Gold 397000g
    Silver Silver Silver 17104000g
  • Year 1958
    Material Ore
    Ore mined 354789mt
    Description 354789 18734 17117 391 354789 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 18734mt
    Gold Gold Gold 391000g
    Silver Silver Silver 17117000g
  • Year 1959
    Material Ore
    Ore mined 250737mt
    Description 250737 11802 11445 289 250737 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 11802mt
    Gold Gold Gold 289000g
    Silver Silver Silver 11445000g
  • Year 1960
    Material Ore
    Ore mined 350754mt
    Description 350754 17161 19413 447 350754 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 17161mt
    Gold Gold Gold 447000g
    Silver Silver Silver 19413000g
  • Year 1961
    Material Ore
    Ore mined 372819mt
    Description 372819 18834 19080 455 372819 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 18834mt
    Gold Gold Gold 455000g
    Silver Silver Silver 19080000g
  • Year 1962
    Material Ore
    Ore mined 306285mt
    Description 306285 13529 9170 252 306285 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 13529mt
    Gold Gold Gold 252000g
    Silver Silver Silver 9170000g
  • Year 1963
    Material Ore
    Ore mined 281266mt
    Description 281266 12820 8936 269 281266 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 12820mt
    Gold Gold Gold 269000g
    Silver Silver Silver 8936000g
  • Year 1964
    Material Ore
    Ore mined 342534mt
    Description 342534 15480 9526 345 342534 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 15480mt
    Gold Gold Gold 345000g
    Silver Silver Silver 9526000g
  • Year 1965
    Material Ore
    Ore mined 399085mt
    Description 399085 17647 12702 397 399085 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 17647mt
    Gold Gold Gold 397000g
    Silver Silver Silver 12702000g
  • Year 1966
    Material Ore
    Ore mined 391829mt
    Description 391829 17809 14505 398 391829 Mt Ore,Mt Cu,Kg Ag.Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper Copper 17809mt
    Gold Gold Gold 398000g
    Silver Silver Silver 14505000g
  • Year 1967
    Material Ore
    Ore mined 199138mt
    Description 199138 8665 6140 155 199138 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 155000g
    Copper Copper Copper 8665mt
    Silver Silver Silver 6140000g
  • Year 1968
    Description 302646 13341 10797 226 302646 Mt Ore,Mt Cu,Kg Ag,Kg Au
  • Year 1969
    Material Ore
    Ore mined 382409mt
    Description 382409 16031 15152 280 382409 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 280000g
    Copper Copper Copper 16031mt
    Silver Silver Silver 15152000g
  • Year 1970
    Material Ore
    Ore mined 402692mt
    Description 402692 16486 14946 308 402692 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 308000g
    Copper Copper Copper 16486mt
    Silver Silver Silver 14946000g
  • Year 1971
    Material Ore
    Ore mined 387219mt
    Description 387219 15245 10590 279 387219 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 279000g
    Copper Copper Copper 15245mt
    Silver Silver Silver 10590000g
  • Year 1972
    Material Ore
    Ore mined 408757mt
    Description 408757 16070 11165 244 408757 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 244000g
    Copper Copper Copper 16070mt
    Silver Silver Silver 11165000g
  • Year 1973
    Material Ore
    Ore mined 492450mt
    Description 492450 20247 12939 312 492450 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 312000g
    Copper Copper Copper 20247mt
    Silver Silver Silver 12939000g
  • Year 1974
    Material Ore
    Ore mined 688721mt
    Description 688721 28786 18108 439 688721 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 439000g
    Copper Copper Copper 28786mt
    Silver Silver Silver 18108000g
  • Year 1975
    Material Ore
    Ore mined 986750mt
    Description 986750 38905 21989 605 986750 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 605000g
    Copper Copper Copper 38905mt
    Silver Silver Silver 21989000g
  • Year 1976
    Material Ore
    Ore mined 1035118mt
    Description 1035118 36096 19162 615 1035120 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 615000g
    Copper Copper Copper 36096mt
    Silver Silver Silver 19162000g
  • Year 1977
    Material Ore
    Ore mined 1063377mt
    Description 1063377 37937 21653 679 1063380 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 679000g
    Copper Copper Copper 37937mt
    Silver Silver Silver 21653000g
  • Year 1978
    Material Ore
    Ore mined 1020185mt
    Accuracy Estimate
    Description 1020185 43416 26463 496 (Estimated) 1020190 Mt Ore,Mt Cu,Kg Ag,Kg Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold Gold 496000g
    Copper Copper Copper 43416mt
    Silver Silver Silver 26463000g
  • Year 1979
    Material Ore
    Ore mined 882959mt
    Description 35,404 Mt Cu Prod. 882959 Mt Ore Mined
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper Copper 35404mt
  • Year 1980
    Material Ore
    Ore mined 505162mt
    Description 20,837 Mt Cu Prod. 505162 Mt Ore Mined
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper Copper 20837mt
  • Year 1981
    Material Ore
    Ore mined 927099mt
    Description 38,520 Mt Cu Prod. 927099 Mt Ore Mined
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper Copper 38520mt
  • Year 1982
    Material Ore
    Ore mined 579599mt
    Description 23,253 Mt Cu Prod. (Mine Closed 8/15/82) 579599 Mt Ore Mined
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper Copper 23253mt
  • Year 1990
    Material Ore
    Ore mined 66000mt
    Description 2,617 Mt Cu Prod. (Mine Reopened 1990). 66000 Mt Ore Mined
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper Copper 2617mt
  • Year 1991
    Material Ore
    Ore mined 227300mt
    Description 11,067 Mt Cu Prod. 227300 Mt Ore Mined
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper Copper 11067mt
  • Year 1992
    Material Ore
    Ore mined 206400mt
    Description 11,474 Mt Cu Prod. 206400 Mt Ore Mined
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper Copper 11474mt
  • Year 1993
    Material Ore
    Ore mined 307100mt
    Description 15,246 Mt Cu Prod. 307100 Mt Ore Mined
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper Copper 15246mt
  • Year 1994
    Description Magma Copper 1994 10K
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Cu Copper Copper 18600mt

Reserves and resources

  • Type In-situ
    Estimate year 2009
    Inferred 1624000000mt ore
    Remarks Resolution ore body. Rio Tinto 2009 AR pdf, p. 73, 74.
    Commodity Subtype Grade units Group Importance Year
    Molybdenum Mo 0.037 wt-pct Molybdenum Primary 2009
    Copper Cu 1.47 wt-pct Copper Primary 2009
  • Type In-situ
    Estimate year 1994
    Measured 939000mt ore
    Demonstrated 939000mt ore
    Total resources 939000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 5.34 wt-pct Copper Major 1994
  • Type In-situ
    Estimate year 1930
    Reserves 226000mt ore
    Commodity Subtype Grade units Group Importance Year
    Manganese Mn 25 wt-pct Manganese Secondary 1930
  • Type In-situ
    Estimate year 1995
    Demonstrated 1663000mt ore
    Total resources 1663000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.47 g/mt Gold Minor 1995
    Copper Cu 5.04 wt-pct Copper Major 1995
  • Type In-situ
    Estimate year 1995
    Demonstrated 616000mt ore
    Total resources 616000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 5.27 wt-pct Copper Major 1995
  • Type In-situ
    Estimate year 1996
    Measured 21000000mt ore
    Demonstrated 21000000mt ore
    Total resources 21000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 4.91 wt-pct Copper Major 1996

Comments on the reserve resource information

  • Other Name:Silver Queen Or Magma Mine Reopening With 1,500,000 Mt Measured Reserves At 6.8% Cu.

Workings at the site

  • Type of workings Underground
    Length 20000M
    Overall depth 1352M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 3
    Status of Mining Method ACTUAL
    Mining Method HORIZ CUT & FILL W/TAILINGS 10-60
    Swell Factor .61
    Percent Waste Rock 7
    Percent Recovery 100
    Hardness of Rock SOFT NONPLASTIC WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. UNSUPPORTING NO FLOW
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Number of Shafts 9
    Avg. Length of Adits (m) 2805
    Number of Adits 1
    1st Condition of Workings OPEN
    Capacity 1360
    Capacity Units MT ORE/DAY
    Unit Production Cost 59.52
    Units of Production $/MT ORE
    Operating Days per Year 144
    Operating Shifts per Day 3
    Year of Information 1991
  • Type of workings Underground
    Area 38.113HA
    Length 22860M
    Overall depth 1493.52M
    Overall length 2651.76M
    Overall width 152.4M
  • Type of workings Underground
    Length 609.6M
    Overall depth 426.72M
  • Type of workings Underground
    Length 1524M
    Overall depth 548.64M
    Overall length 762M

Comments on the workings information

  • 8 Shafts. Deepest Mine In The State. 36 Levels, With Levels Every 100 Ft In Upper 2000 Ft Every 200 Ft Down To 4800 Ft. Workings Diminish In Thickness To The East, And Are Mainly Between The 3000 Ft And 4000 Ft Levels. Length Of Workings Estimated
  • Workings Include Vivian Shaft (279 Ft Deep), Anderson Tunnel (200 Ft), Carlton Tunnel (2000 Ft), Holt Tunnel And Inclined Shaft (1800 Ft Deep); The Anderson Tunnelis Located About 100 Ft North Of The Carlton, Upslope; The Holt Tunnel Is About 1200 Ft North Of The Anderson At About The Same Elevation; The Holt, Anderson, And Carlton Interconnect Underground.

Comments on other economic factors

  • Other Name:Silver Queen Or Magma Mine Reopening With 1,500,000 Mt Measured Reserves At 6.8% Cu. Labor Recs Based On Mine And Mill At Planned Capacity After 1991.

Comments on development

  • Originally Called The Silver Queen, 1875-1909. Magma Copper Company Began Operating 1910 Minor Production Until 1911, When Owned By Lake Superior And Arizona Mining Company
  • Claims Include Golden Eagle And 5 Adjacent Claims; Worked In 1880'S By Gem Mining Co. As The Golden Eagle Mine; Other Owners/Operators: Lake Superior And Arizona Mining And Smelting Co., Superior Arizona Mining Co., Sam Herron And Con Laster

Reference information

Bibliographic references

  • Deposit

    "Ore Deposits Of The United States" 1933-1967,Part 9 Chap 61 Pp 1285-6. (This Covers The Years 1911-1964, Inclusive)

  • Reserve-Resource

    Dobbs, Dave. Engineer With Magma, Superior Division. (Per-

  • Development

    Sell, J.D., 1995, Discovery of a deep (3500 feet) unexposed porphyry copper deposit at Superior East, Pinal County, Arizona; in Pierce, F.W. and Bolm, J.G., eds., Porphyry Copper Deposits of the American Cordillera, Arizona Geological Society Digest, v. 20, p. 373-395

  • Geology

    Manske, S. and Paul, A.H., 2002, Geology of a major new porphyry copper center in the Superior (Pioneer) district, Arizona: Economic Geology, v. 97, p. 197?220.

  • Age

    Creasey, S.C. and Kistler, R.W., 1962, Age of some copper bearing porphyries and other igneous rocks in southeastern Arizona; U.S. Geological Survey, Professional Paper 450-D, p. 1-5.

  • Deposit

    Listing Application To The New York Stock Exchange A-27691

  • Reserve-Resource

    Magma Copper Co Sec Form 10-K Rept, Dec 31, 1993, P. 17.

  • Geology

    The Porter GeoConsultancy webpages for Superior and Resolution mines contain descriptions of the geology. Accessed on 9/30/2010.
    http://www.portergeo.com.au/

  • Reserve-Resource

    Magma Copper Co 1994 10-K, P.16,19-20.

  • Deposit

    Dunning, Charles H, With Edward H Peplow,Jr., "Rocks To

  • Reserve-Resource

    Broken Hill Pty. Co. Ltd., 1996 Report To Shareholders-

  • Deposit

    U.S. Bu. Of Mines Official Gold,Silver,Copper,Lead,andZinc

  • Deposit

    Dobbs, Dave Engineer With Magma, Superior Division. (This

  • Deposit

    Short, M. N., F. W. Galbraith, E. N. Harshman, T. H. Kuhn, A

  • Deposit

    Hammer, D. F. And D. W. Peterson. Geology Of The Magma Mine

  • Deposit

    Peterson, D. W. Preliminary Geological Map Of The Western Pa

  • Deposit

    Dunning, C. H. Rock To Riches. Southwest Publishing Company,

  • Deposit

    E/Mj International Directory Of Mining And Mineral Processin

  • Deposit

    Pay Dirt. Magma To Bore 9000 Foot Haulage Tunnel At Superior

  • Deposit

    Skillings, D. N. Jr. Magma Copper Co. Marking Expanded Produ

  • Deposit

    Murray, T. W. Operating Improvements At Magma'S No. 9 Shaft.

  • Deposit

    Murray, J. W. And E.K. Staley. Underground Operations At Sup

  • Deposit

    Beall, J. V. Copper In The U.S. - A Position Survey. Mining

  • Deposit

    Newmont Mining Company, Securities And Exchange Commision Fo

  • Deposit

    Skillings Mining Review . Magma Co. Operations At Superior A

  • Deposit

    Epler, Bill. Magma Restarts Mine After 8-Year Hiatus.

  • Deposit

    Magma Copper Company 1988-1990 Annual Reports.

  • Deposit

    Walenga, Karen. Reopening Mine and Mill To Cost $13 Million.

  • Deposit

    Magma Update, 7-91, P.7.

  • Deposit

    Sw Pay Dirt, 11-90, P.4a.

  • Deposit

    Sw Paydirt, 9-90, P.13a.

  • Deposit

    Sw Pay Dirt, 3-90, P.4a.

General comments

Subject category Comment text
Deposit Property Is Also Under USGS Mrds Id No. W002674. Commodities Presently Produced Are Copper, Silver And Gold. Ore Was Mined And Milled From 1938-1945 And 1950-1952. Manganese Minerals Are Present In The Deep Vein Ore Bodies The No. 9 Shaft Is The Only Shaft Used. Its Location Is From Information Taken From Pay Dirt And Petersons Mf-253 Development Schedule Based On The Size Of The Deposit, A Major Mine And Plant Development Program Was Initiated In 1969. Limestone Densities Are Assumed. Ore Body Length And Width Limestones Are Estimated. Present Production Is From The Martin And Escabrosa Limest The Magma And Koerner Veins Were Phased Out In 1950 Due To Economic Problems With Ventilation, Cooling And Ore Grade Deep Portions Of The Veins. Swell Factor Is Based On An As Value Of 65 %. A Form Of Underhand Cut And Fill Mining Is Presently Used. This Mining Method Was Adopted From The Su Operations Of The International Nickel Company Of Canada. Production, Service And Supplies For The Mine Are Handled The No. 9 Shaft. Ultimate Hoisting Capacity Of The No. 9 S Is 4000 Tpd Of Ore And 300 Of Waste From 6000 Feet. Cost Related Comments From April 1969 To August 1973 A Major Expansion Program W Undertaken. Total Capital Expenditure Exceeded 70 Million Including All Direct And Indirect Costs. Key Elements Of T Program Were: A 4823 Ft Deep, 22 Ft Diameter Concrete Line A 9200 Ft Long, 12.5 Ft Diameter Bored Adit Connecting Sha No. 9 To Surface Yard Facilities And The Concentrator. An Ground Development Program To Prepare Additional Facilites Increased Mining Tonnage. Expansion And Modernization Of T Concentrator To Process 4200 Tpd Of Ore. Conversion Of The Surface Plant And Mine Electrical System From 25 Hz To 60 A New Hoist Plant. New Air Compressors, Electrical And Mec Repair Shops, Warehouse, Office And Changeroom Facilities Shaft No. 9. Mine Cooling Capacity Was Raised To 6300 Tons (See Murray) Total Direct Mining Costs In 1976 Were 2.39 D Less Per Ton Than In 1973. Property Update Sept. 1991. Mils Location Is Neversweat (500-Foot) Tunnel Portal. Main Production And Service Shaft, No. 9 Shaft, Is Located At N331816 Lat, W1110403 Long, In Sec 32, R13e, T1s, Gila & Salt River Pm. Ore Is Hoisted Up This Shaft From Deep Levels To Neversweat Level. Ore Is Then Trammed 2,740 M To Portal And Another 670 M On Surface To Concentrator. 1979-82 & 1990 Production From Az Dept Of Mines & Min. Res. Special Reports - Primary Copper Industry Of Arizona. Mine Closed In 1982, And Was Allowed To Flood In 1986. In 1989, Mine Dewatering Began And Was Completed In Early 1990. Production Started In Late July At A Level Of 907 Mtpd Ore. By End Of 1991, Production Level Will Reach 1360 Mtpd Ore.
Deposit The Magma Mine at Superior:
Complex Vein Splits Forming Stockworks, With Ore Shoots, Alone Faults And Fissures. Main Ore Body E Of W Dipping Main Fault. Central Ore Bodies Are Complex Ore Shoots E Of Main Body. Farther E And Up In Section Are Replacement Beds In Lower Devonian Linestone, 10-90 Ft Width Of Ore, 25 Ft Average. In The Central Ore Bodies, Above The 2550 Ft Level, Zinc Exceeds Copper. Below 2550 Ft, Copper Dominates
Deposit The Magma Mine at Superior:
Vein Occurs Within A Strike Fault Zone That Has Brecciated The Wall Rocks Contact And The Lower Beds Of The Limestone. Most Productive Gold Horizon Along The Faults Is Within The Limestone, 10-20 Feet Above The Limestone-Quartzite Contact. All Mined Ore Has Been Oxidized

Reporter information

Type Date Name Affiliation Comment
Updater 17-JUL-09 Anderson, Claire U.S. Geological Survey
Reporter 19-MAR-97 Hite, Alan G. U.S. Bureau of Mines
Updater 01-MAR-94 Orris, Greta J. U.S. Geological Survey
Reporter 04-NOV-83 ADMR U.S. Bureau of Mines
Reporter 01-MAR-82 Gest, Don E. Arizona Bureau of Geology and Mineral Technology
Reporter 01-MAR-82 Roth, Frances A. Arizona Bureau of Geology and Mineral Technology
Reporter 01-FEB-81 Harner, Joy L. (Peterson, Jo) U.S. Geological Survey
Reporter 01-JAN-73 Cox, Dennis P. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Current status (per MSHA)

StatusNonProducing since 12/13/2016
MSHA mine ID0200152
Mine name (MSHA)Resolution Mine
Current operatorResolution Copper Mining LLC
Current controller (parent)RTZ Corp PLC; BHP Billiton PLC
Mine typeUnderground (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

Maps centered on this site

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.