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Oro Blanco Mine

Past Producer in Santa Cruz county in Arizona, United States with commodities Gold, Silver, Copper, Lead, Zinc
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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 10039548
MRDS ID M050257
Record type Site
Current site name Oro Blanco Mine
Alternate or previous names White Gold Mine
Related records 10137299

Geographic coordinates

Geographic coordinates: -111.24597, 31.4207 (WGS84)
Elevation 1158

Site location context

Political divisions (FIPS codes)

Santa Cruz(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ruby(quadrangle 1:24,000 scale)

Atascosa Mountains(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rio De La Concepcion(hydrologic unit)

Rio De La Concepcion(hydrologic accounting unit)

Sonora(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 023S 011E 17 SW OF SW Arizona

Comments on the location information

  • INFO FROM LAND.ST :(1979)

Commodities

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

Materials information

Materials Type of material
Gold Ore
Silver Ore

Alteration

  • (Local) Minor

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene

Nearby scientific data

(1) -111.24597, 31.4207
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Nw-And Ne-Trending Fault Zones
Type of structure Local
Structure description Fault Zone

Ore body information

  • General form TABULAR
    Strike N 35 W
    Dip 90

Controls for ore emplacement

  • Quartz Veins In Nw-Trending Fault Zone

Comments on the geologic information

  • CONTACT WITH THE LOWER CONGLOMERATE MEMBER OF THE ORO BLANCO FORMATION IS TO SOUTH OF THE MINE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1850
Year of first production 1873
Year of last production 1962
Production years 1936-1948

Mining district

District name Oro Blanco District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Rayrock Mines Inc. Elko, Nv.; Highland Crow Resources Ltd. Vancouver, British Colu
    First year 1986
  • Type Owner
    Owner Legend Group Ltd.
    First year 1930

Workings at the site

  • Type of workings Underground
    Length 670.56M
    Overall depth 80.77M

Comments on the workings information

  • 265 - FT. SHAFT CONTAINS WATER TO 150 FOOT LEVEL; 125-FOOT LEVEL HAS MOST WORKINGS INCLUDING SEVERAL STOPES.

Comments on development

  • PAST OPERATORS INCLUDE: FRED FLICKETT (1946), ARTESIA INVESTMENT CO. (1940-1942; P. W. WELLS(1938), B.W. AND C.W. PARKS (1962). 1984-86: EWING, RAYROCK AND HIGHLAND HOLD DIFFERENT PARTS OF PROPERTY; RAYROCK DID UNDERGROUND REHABILITATION, SAMPLING AND SURFACE DRILLING; HIGHLAND DID SURFACE DRILLING; EWING LEACHED DUMP MATERIAL.

Reference information

Bibliographic references

  • Deposit

    WILSON ET AL, 1934, ARIZONA LODE GOLD MINES: ABM BULL. 137.

  • Deposit

    KNIGHT, L.H., JR. 1970, ORO BLANCO DISTRICT: UNIV. ARIZ. PH.D. THESIS.

  • Deposit

    ABM BULL 191, P. 68

  • Deposit

    USBM-ABGMT PRODUCTION FILE DATA

  • Deposit

    NIEMUTH, N.J., 1987, ARIZONA MINERAL DEVELOPMENT 1984-1986: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES DIRECTORY 29, 46 P.

  • Other Database

    CIMRI

  • Production

    ABM FILE DATA

General comments

Subject category Comment text
Deposit SAME TYPE OF DEPOSIT AS AT TRES AMIGOS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit Discovery Year: 1800'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1972 Johnson, Maureen G. U.S. Geological Survey
Updater 01-MAY-1982 Laraba, Peter (Calder, Susan R) Arizona Bureau of Geology and Mineral Technology
Updater 01-FEB-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.