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  3. Mineral Resource Data System (MRDS)

Dutch-App Group

Past Producer in Tuolumne county in California, United States with commodity Gold
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10077899
MRDS ID W025973
Record type Site
Current site name Dutch-App Group

Geographic coordinates

Geographic coordinates: -120.42406, 37.92575 (WGS84)
Elevation 457
Relative position 2 MILES S. OF JAMESTOWN ON N.W. SLOPE OF QUARTZ MOUNTAIN.

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sonora(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Tuolumne(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Tuolumne

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001N 014E 22 California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Dolomite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -120.42406, 37.92575
ListMap

Economic information

Ore body information

  • General form LENTICULAR BUNCHES OF QUARTZ
    Strike N 30 W
    Dip 65 NE
    Thickness 9.14M

Comments on the geologic information

  • GEOL.DESC: VEIN CONTAINS TALCOSE SCHIST AND A DIKE OF ALTERED DIORITE. HANGING WALL DIORITE, FOOTWALL SLATE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No

Mining district

District name Mother Lode Belt

Land status

Ownership category Private

Workings at the site

  • Type of workings Underground
    Area 16.188HA
    Overall depth 408.43M

Comments on the workings information

  • TWO ORE SHOOTS MINED THROUGH AN INCLINED SHAFT 1340 FT. WITH LEVELS NORTH AND SOUTH ON VEIN AT 100 FT. INTERVALS.

Reference information

Bibliographic references

  • Deposit

    TUCKER, W.B., 1914 , TUOLUMNE COUNTY: CMB REPT. 14 , P. 136 - 137

General comments

Subject category Comment text
Deposit DUTCH APP GROUP CONTROLS THE APP, HESLEP, DUTCH AND HITCHCOCK CLAIMS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1978 Albers, J. U.S. Geological Survey

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.