North Star Mine

Past Producer in Yuma county in Arizona, United States with commodities Gold, Silver
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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10234464
MAS/MILS ID 0040270307
Record type Site
Current site name North Star Mine

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -113.97298, 33.29697 (WGS84)
Elevation 610
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Yuma(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Kofa Butte(quadrangle 1:24,000 scale)

Little Horn Mountains(quadrangle 1:100,000 scale)

Phoenix(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Gila(hydrologic unit)

Lower Gila(hydrologic accounting unit)

Lower Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Yuma

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 001 S 017 W 36 C Arizona

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Adularia Unknown
Biotite Unknown
Chlorite Unknown
Epidote Unknown
Gold Unknown
Pyrite Unknown
Quartz Unknown
Silver Unknown

Nearby scientific data

Main Entrance (1) -113.97298, 33.29697

Economic information

Ore body information

  • Strike N90E
    Dip 60N
    Thickness 152M
    Width 3M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Type of Wallrock Alter. #1 SILICIFICATION
    Strike And Dip N90E:60N
    Minimum Depth to Top 0
    Date of Last Modification 910918

Comments on the geologic information

  • ALTERATION ALSO INCLUDES CHLORITIZATION. LENGTH OF MINERALIZATION IS AT LEAST 1067 M (3500 FT).

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1906
Year of first production 1907

Mining district

District name Kofa District

Land status

Ownership category Federal

Ownership information

  • Type Unknown
    Owner Golden Star Mining And Milling Co
    ID 0202082
  • Type Unknown
    Owner Gold And Minerals Co. Inc.
    ID 0202082
    Home office Arizona
    Year 1987

Production statistics

  • Year 1911
    Period 1907-1911
    Description Ore At 1.4 Tr Oz/St Au, 0.6 Tr Oz/St Ag 38735 St Ore. Produced 1907-11.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 40g/mt
    Minor Ore Silver Silver 17g/mt

Reference information

Bibliographic references

  • Deposit

    KEITH S B 1978 ARIZ BUR GEOL AND MIN TECH BULL 192 P 155

General comments

Subject category Comment text
Deposit GRADE DECREASES WITH DEPTH. AT LIMIT OF WORKINGS (500-FT DEPTH), ORE PRODUCED $14.00/ST FROM COMBINED GOLD AND SILVER VALUES IN 1911. THE RATIO OF GOLD TO SILVER VALUE WAS 58:1, THE PRICE OF GOLD WAS $20.67/TR OZ, AND THE PRICE OF SILVER WAS $0.54/TR OZ. WITH THE PRECEDING INFORMATION, THE ORE GRADE AT DEPTH CAN BE ESTIMATED AT ABOUT 0.67 TR OZ/ST AU AND ABOUT 0.44 TR OZ/ST AG. AT THESE GRADES, THE "LARGE TONNAGES" REFERRED TO BY WILSON, CUNNINGHAM, AND BUTLER (AZ BUR. MINES BULL. 137, 1934) CERTAINLY CONSTITUTE A SIGNIFICANT RESOURCE.

Reporter information

Type Date Name Affiliation Comment
Reporter 18-SEP-91 Gosling U.S. Bureau of Mines

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 06/22/1983
MSHA mine ID0202082
Mine name (MSHA)North Star
Current operatorDuane Grey
Current controller (parent)Grey Duane
Mine typeSurface (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.

External references

Authoritative Arizona resources

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