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World'sFair Mine

Producer in Santa Cruz county in Arizona, United States with commodities Silver, Lead, Copper, Gold, Zinc, Antimony
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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. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10109888
MRDS ID M899917
Record type Site
Current site name World'sFair Mine
Alternate or previous names Henry Ford Mine
Related records 10162218

Geographic coordinates

Geographic coordinates: -110.73845, 31.47875 (WGS84)
Elevation 1448
Relative position 2.0 MILES WEST OF HARSHAW, ON ALUM GULCH

Site location context

Political divisions (FIPS codes)

Santa Cruz(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Harshaw(quadrangle 1:24,000 scale)

Nogales(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Santa Cruz(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado 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 Santa Cruz

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 022S 016E 32 S2 OF NW Arizona

Comments on the location information

  • 1/2 MILE NORTH OF TRENCH MINE AND MILL ; INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Silver Primary
Lead Primary
Copper Secondary
Gold Secondary
Zinc Critical Secondary
Antimony Critical Tertiary

Comments on the commodity information

  • CHALCOPYRITE AND PYRITE ARE FINELY DISSEMINATED IN WALL ROCK; ORES ARE RICH AND SPOTTY

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Freibergite Ore
Galena Ore
Pyrite Ore
Silver Ore
Sphalerite Ore
Tetrahedrite Ore
Barite Gangue
Quartz Gangue

Alteration

  • (Local) Wall Rocks Strongly Propylitized And Pyritized; Strong Pyrite Gossan

Analytical data

Result ORE VALUES AVERAGED 58 OZ/TON AG, 6.6% PB, 0.7% CU, MINOR AU AND ZN

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Josephine Canyon Diorite
    Rock description Josephine Canyon Diorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Trachyandesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Plutonic Rock

Nearby scientific data

(1) -110.73845, 31.47875
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Deposits In Area Are Associated With Contact Of Rhyolite Intruded Into Diorite
Type of structure Local
Structure description Vein Is Cut By Weakly Mineralized Cross Faults With Average Left Lateral Displacement Of 75 Ft

Ore body information

  • General form PINCH AND SWELL
    Strike NNW
    Dip 45-80 WSW
    Width 4.27M
    Depth to bottom 304.8M

Controls for ore emplacement

  • N-S Trending Vein Developed On 2 Slips That Converge And Diverge, Forming Pinch And Swell Structures; Swells Are Wholey Or Partially Mineralized

Comments on the geologic information

  • VEIN IS CUT OFF BY FLAT-DIPPING FAULT AT SOUTH END OF TUNNEL; UPPER FAULT BLOCK PROBABLY MOVED EAST BUT NO EXPLORATION HAS BEEN DONE IN ORDER TO LOCATE OFFSET UPPER PORTION OF VEIN BEYOND FLAT FAULT; ORE MINERALS ALONG CONTACT CONCENTRATE MAINLY IN RHYOLITE OR HANGING WALL SIDE OF CONTACT; BARITE FORMS SEAMS, BLADES, AND PLATES FILLING FRACTURES AND CAVITIES (INDICATING LATE OR POST VEIN AGE); HYDROTHERMAL ALTERATION AND LIMONITE MINERALIZATION APPEAR TO EXTEND BEYOND LIMITS OF NARROW VEINS ON PROPERTY

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1879
Discoverer Mcnamee
Year of first production 1879
Year of last production 1954

Mining district

District name Harshaw District

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner Platoro Corp.
    First year 1964

Workings at the site

  • Type of workings Surface/Underground
    Length 4572M
    Overall depth 182.88M

Comments on the workings information

  • DEVELOPMENTS INCLUDED 600 FT. WINZE; ABOUT 15,000 FT OF DRIFTS, TUNNELS, STOPES, SHAFTS, AND WINZES; DRIFTING 1000 FT EACH WAY FROM WINZE ON VEIN AT LEVELS SPACED 100 FT APART; SHALLOW OPENINGS TO SOUTH OF MINE ARE ALONG N-S RHYOLITE DIKE CUTTING DIORITE

Comments on development

  • OWNERS AND OPERATORS INCLUDED MCNAMEE (1879-1881), W. MORAN (1883-1884), FRANK POWERS (1884-1904), WORLD'S FAIR MINIG CO. (1909), PHELPS DODGE CO. (1912), COMMONWEALTH DEVELOPMENT CO. OF PEARCE (1917-1918), BACHMAN-MERRITT METALS CO., L.L. FERRY, C. SCHELER, M. HOGAN (1923-1926), ZERO MINING CO. (1928), TRENCH MINING CO. (1929), WORLD'S FAIR DEVELOPMENT CO., RICHEY, MAX DRACHMAN, GOLD CANYON MINING CO. (1936), J.C. SCHELL (1937-1941), A. GRIFFITH AND KRAMER, AMERICAN SMELTING AND REFINING CO. (1952), KELSEY (1954); PROPERTY COMPRISES 19 UNPATENTED LODE CLAIMS

Reference information

Bibliographic references

  • Deposit

    ABGMT-USBM FILE DATA

  • Deposit

    USBM FILES, WORLD'S FAIR MINE

  • Deposit

    TENNEY, JAMES B., 1927-1929, HISTORY OF MINING IN ARIZONA; ARIZONA BUREAU OF MINES, P. 301-303

  • Deposit

    SCHRADER, FRANK C., 1915, MINERAL DEPOSITS OF THE SANTA RITA AND PATAGONIA MOUNTAINS, ARIZONA; USGS BULLETIN 582, P. 248-251

  • Deposit

    SIMONS, FRANK S., 1974, GEOLOGIC MAP AND SECTIONS OF THE NOGALES AND LOCHIEL QUADRANGLES, SANTA CRUZ COUNTY, ARIZONA; USGS MAP I-762 (1:48000)

  • Deposit

    ADMR FILE DATA, WORLD'S FAIR MINE

  • Deposit

    KEITH, STANTON B., INDEX OF MINING PROPERTIES IN SANTA CRUZ COUNTY, ARIZONA; ARIZONA BUREAU OF MINES BULLETIN 191, P. 60

  • Deposit

    ABGMT FILES, STANTON B. KEITH

  • Deposit

    KARTCHNER, WAYNE E., 1944, THE GEOLOGY AND ORE DEPOSITS OF A PORTION OF THE HARSHAW DISTRICT, PATAGONIA MOUNTAINS, ARIZONA; PHD. THESIS, UNIVERSITY OF ARIZONA,P. 86-88

  • Deposit

    ABGMT CLIPPINGS FILE; WORLD'S FAIR MINE, WORLD'S FAIR EXTENSION MINES

General comments

Subject category Comment text
Deposit PINCH AND SWELL STRUCTURES SUCCEED EACH OTHER AT INTERVALS USUALLY UNDER 50 FT.;VEIN CROPPINGS EXTEND 660 FT OR MORE TO SOUTH OF MINE; VEIN DEPOSITS HAVE A KNOWN VERTICAL RANGE OF 1000 FT, 400 FT OF WHICH IS SEEN IN CROPPINGS AND 600 FT SEEN IN MINE; CROPPINGS AVERAGE 10-14 FT WIDE WHILE VEIN IN MINE IS ABOUT 6 FT WIDE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1982 Calder, Susan R. Arizona Bureau of Geology and Mineral Technology

Beyond USGS

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

External references

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.