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  3. Mineral Resource Data System (MRDS)

Huelsdonk Placer

Producer in Mariposa county in California, United States with commodities Gold, Platinum
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10038011
MRDS ID M045260
Record type Site
Current site name Huelsdonk Placer
Related records 10212550

Geographic coordinates

Geographic coordinates: -120.34988, 37.61492 (WGS84)
Elevation 198
Location accuracy 10000(meters)
Relative position ABOUT 7 MI NORTH-NORTHWEST OF MERCED FALLS

Site location context

Political divisions (FIPS codes)

Mariposa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Merced Falls(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Merced(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Mariposa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 004S 015E 05,06 California

Comments on the location information

  • ON BROWN'S CREEK NEAR BUTTERFLY MINE (SEC. 5)

Commodities

Commodity Importance
Gold Primary
Platinum Critical Secondary

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Rock unit name Ione Formation
    Rock description Ione Formation
    Stratigraphic age (youngest) Holocene
    Stratigraphic age (youngest) Eocene

Nearby scientific data

(1) -120.34988, 37.61492
ListMap

Economic information

Ore body information

  • General form STREAM SEDIMENT DEPOSITS

Controls for ore emplacement

  • Stream Hydraulics

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Merced River Area

Ownership information

  • Type Owner
    Owner W. A. Huelsdonk

Comments on the production information

  • SOME AU AND A LITTLE PT IN 1926. UNVERIFIED BYPRODUCT PT PRODUCTION

Reference information

Bibliographic references

  • Deposit

    BOWEN, O.E., JR., AND GRAY, C.H., JR., 1957, MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 53, NOS. 1, 2, P. 320

General comments

Subject category Comment text
Deposit SEE ALSO: MRDS M045258.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1974 Blair, Will N. U.S. Geological Survey
Updater 01-FEB-1989 Peterson, Jocelyn A. 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.