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Mahoney 1 Mine

Past Producer in San Joaquin 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. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10116352
MRDS ID M020146
MAS/MILS ID 0060770005
Record type Site
Current site name Mahoney 1 Mine
Alternate or previous names Johnson Mine, Doak Mine
Related records 10033552

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -121.50042, 37.64321 (WGS84)
Elevation 300
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

San Joaquin(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Midway(quadrangle 1:24,000 scale)

Stockton(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Joaquin Delta(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Federal lands

OTHFE(Federal land areas administered by OTHFE)

Geographic areas

Country State County
United States California San Joaquin

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 004 S 004 E 11 E2NENE California

Commodities

Commodity Importance
Manganese Critical Tertiary
Silica Tertiary

Materials information

Materials Type of material
Chert Unknown
Psilomelane Unknown

Nearby scientific data

Main Entrance (1) -121.50042, 37.64321
ListMap

Economic information

Ore body information

  • Strike N20W
    Dip 70S
    Thickness 2M
    Length 16M
    Width 3M
    Depth to top 1M
    Field Value
    MAS Matrix # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 SHEAR ZONE
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. NONE
    Strike And Dip N20W:70S
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 1
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830316
  • Area 6HA
    Field Value
    Total Surface Area (HA) 6
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1914
Year of first production 1915

Mining district

District name Ladd

Mineral rights holdings

Type of mineral rights Fee Ownership

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Harold B. Frybarger Et. Al
    Interest 100
    Home office California
    Year 1975

Comments on the reserve resource information

  • RESOURCE EST. INCLUDES MAHONEY #2, LOCATED AT BOTTOM OF CANYON

Reference information

Bibliographic references

  • Deposit

    C.D.M.G. BULL. 152, PP. 226-7 PLATE 10,1950

  • Deposit

    U.S. BUREAU OF MINES RI 4580, 1949; NW. OF THE LADD MINE.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Burnett 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.