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Grand Reef Mine

Past Producer in Graham county in Arizona, United States with commodities Lead, Copper, Silver, Zinc, Gold, Silica, Molybdenum, Fluorine-Fluorite, Barium-Barite
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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. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10039486
MRDS ID M050152
Record type Site
Current site name Grand Reef Mine
Alternate or previous names Klondike Area, Includes Grand Reef, Aravaipa, Dogwater, and Silver Cable Claims
Related records 10209872

Geographic coordinates

Geographic coordinates: -110.32373, 32.89093 (WGS84)
Elevation 1219
Relative position 4.6 MI SSE OF ARAVAIPA, 4 MI NE OF KLONDYKE BY ROAD.

Site location context

Political divisions (FIPS codes)

Graham(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cobre Grande Mountain(quadrangle 1:24,000 scale)

Mammoth(quadrangle 1:100,000 scale)

Tucson(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower San Pedro(hydrologic unit)

San Pedro-Willcox(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States Arizona Graham

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 006S 020E 29;05,08,17,20 NE4 Arizona

Comments on the location information

  • IN SANTA TERESA MOUNTAINS.

Commodities

Commodity Importance
Lead Primary
Copper Primary
Silver Secondary
Zinc Critical Secondary
Gold Secondary
Silica Tertiary
Molybdenum Tertiary
Fluorine-Fluorite Critical Tertiary
Barium-Barite Critical Tertiary

Materials information

Materials Type of material
Anglesite Ore
Barite Ore
Chalcopyrite Ore
Chrysocolla Ore
Fluorite Ore
Galena Ore
Malachite Ore
Sphalerite Ore
Wulfenite Ore
Quartz Gangue

Alteration

  • (Local) Silicification

Analytical data

Result ASSAYS (1915-1920) 2.83% CU, 40.9% PB, 1.4% ZN, 0.01 OZ AU/TON, 20 OZ AG/TON, 2.4% FE, 6.4%

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Tertiary
    Chronological age 25
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Rock unit name Horse Mountain Volcanics;Goodwin Canyon Quartz Monzonite
    Rock description Horse Mountain Volcanics;Goodwin Canyon Quartz Monzonite
    Stratigraphic age (youngest) Tertiary
    Chronological age 25
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Pinal Schist
    Rock description Pinal Schist
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)
    Stratigraphic age (youngest) Tertiary
    Chronological age 25

Nearby scientific data

(1) -110.32373, 32.89093
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Block Faulting Trending Nnw, Minor Pre-Cretaceous Folding Trending E And Ne
Type of structure Local
Structure description Grand Reef Fault (Low Angle Fault)

Ore body information

  • General form TABULAR
    Strike N 12 W
    Dip 85 W
    Length 36.58M
    Width 9.14M
    Depth to bottom 234.7M

Controls for ore emplacement

  • In Silicified Breccia In Grand Reef Fault Within Rhyolite Porphyry Which Is Intruded By Granite

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1890
Year of first production 1915

Mining district

District name Aravaipa District

Ownership information

  • Type Owner
    Owner American Zinc, Lead, And Smelting Co.
    Home office St. Louis, Mo.
    First year 1950

Comments on the production information

  • PRODUCTION YEARS 1907-1908, 1915-1920, 1929-1931. RANKED AS SECOND PRODUCER OF LEAD IN 1931.

Workings at the site

  • Type of workings Underground
    Length 1219.2M
    Overall depth 91.44M

Comments on the workings information

  • BETWEEN 1890-1900 MINE OPENED TO DEPTH OF 300 FT. HAULAGE LEVEL I N 1950 WAS ADIT 1400 FT LONG AND WINZE EXTENDED 300 FT BELOW ADIT WITH 3 LEVELS OF DRIFTS AT 100 FT INTERVALS

Reference information

Bibliographic references

  • Deposit

    SIMONS, 1964, USGS PP 461, 173 P.

  • Deposit

    ROSS, 1925, USGS BULL 763, 120 P.

  • Deposit

    DENTON, 1947, USBM RI 4007.

  • Deposit

    WILSON, 1950, ABM BULL 156.

  • Deposit

    PEIRCE, H.W., 1990, ARIZONA GEOLOGICAL SURVEY INDUSTRIAL MINERAL CARD FILES.

  • Deposit

    VAN ALSTINE, R.E., AND MOORE, R.T., 1969, FLUORSPAR, IN ABM BULLETIN 180, USGS BULLETIN 871, P. 352.

  • Deposit

    MINERALS AVAILABILITY SYSTEM: ARIZONA FLUORSPAR, ARIZONA DMR, MARCH 1976.

  • Deposit

    PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit BELOW ADIT LEVEL ORE BODY WAS 40-50 FT LONG, 10-15 FT WIDE. LEAD AND ZINC SULFIDES AND OXIDES OCCUR IN FISSURE VEINS AND REPLACEMENT BODIES IN INTENSIVE RHYOLITE AND BRECCIATED LIMESTONE. THE VEINS ARE IN LOW ANGLE FAULT ZONES.
Deposit THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M050152 WITH RECORD M030461 OF JAN WILT IN MOLYBDENUM FILE. DUPLICATE RECORDS D000318 OF ROBERT U. KING AND D002877 OF J. WILLIAM HAVE ALSO BEEN COMBINED IN THIS RECORD; CONTACT PERSON T.G. THEODORE, USGS. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1983 Peterson, Jocelyn A. U.S. Geological Survey
Updater 01-SEP-1991 Carbonaro, Marguerite M. U.S. Geological Survey
Updater 01-JUN-1993 Orris, Greta J. U.S. Geological Survey

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.