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Stirnaman Mine

Past Producer in Amador county in California, United States with commodities Manganese, Silica
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mineral rights holdings
  11. Land status
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10138401
MRDS ID M005227
MAS/MILS ID 0060050012
Record type Site
Current site name Stirnaman Mine
Alternate or previous names Stacy Mine
Related records 10109109

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -120.59911, 38.441 (WGS84)
Elevation 907
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Amador(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

West Point(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Mokelumne(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Amador

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 007 N 012 E 24 SWSESE California

Commodities

Commodity Importance
Manganese Critical Tertiary
Silica Tertiary

Nearby scientific data

Main Entrance (1) -120.59911, 38.441
ListMap

Economic information

Ore body information

  • Strike N30E
    Dip 80S
    Thickness 13M
    Length 50M
    Width 5M
    Depth to top 5M
    Field Value
    MAS Matrix # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 LENTICULAR
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin OXIDATION
    Secondary mode of Origin RESIDUAL CONCENT
    Primary Ore Control LITHOLOGY
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. NONE
    Strike And Dip N30E:80S
    Minimum Depth to Top 1
    Avg. Thick. Unconsol. Mat. 5
    Min. Thick. Unconsol. Mat. 1
    Date of Last Modification 830316
  • Area 2HA
    Field Value
    Total Surface Area (HA) 2
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Year of first production 1917

Mineral rights holdings

Type of mineral rights Fee Ownership

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Wells, Lorin C. And Joy L.
    Interest 100
    Home office 725 Del Mar Av., Stockton, Ca 95200
    Year 1975

Reference information

Bibliographic references

  • Deposit

    TRASK-GEO DESCRIPT MN DEPS OF CAL-CAL DIV OF MINES BUL.152-A

  • Deposit

    TRENGOVE-RECON OF CAL MN DEPS-USBM R.I.5579-1960

  • Deposit

    ROOT-23RD RPT OF STATE MIN-MININGIN CA-CA ST MIN BUR-VOL 23-

General comments

Subject category Comment text
Deposit 10-23-75-MINE SITE COMPLETELY OVERGROWN BY MANZANITA-ACCESS 10-23-75-SEVEN SHAFTS & ADITS OBSCURED BY THICK BRUSH-DANGER

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Niemi U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site

Authoritative California resources

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