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Gold Reef Group

Past Producer in San Bernardino 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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  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 10035715
MRDS ID M023601
Record type Site
Current site name Gold Reef Group
Alternate or previous names Clipper Mtn., Tom Reed, Gold Reef
Related records 10236845

Geographic coordinates

Geographic coordinates: -115.40055, 34.7003 (WGS84)
Elevation 732

Site location context

Political divisions (FIPS codes)

San Bernardino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Castle Dome(quadrangle 1:24,000 scale)

Amboy(quadrangle 1:100,000 scale)

Needles(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Southern Mojave(hydrologic unit)

Southern Mojave(hydrologic accounting unit)

Southern Mojave-Salton Sea(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California San Bernardino

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 007N 015E 14,15 California

Comments on the location information

  • UTM ACC. N 1/2 15. OTHER LOCATION IN SEC. 14

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Alteration

  • (Local) Hydrothermal Alteration Occurs Along Fault Zone.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)

Nearby scientific data

(1) -115.40055, 34.7003
ListMap

Economic information

Ore body information

  • Strike N60W
    Dip 60SW
    Thickness 15.24M
    Length 457.2M

Economic information about the deposit and operations

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

Mining district

District name Gold Reef

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 152.4M

Comments on the workings information

  • 300 FT. SHAFT AT CLIPPER MTN., 500 FT. SHAFT AT TOM REED AND SEVERAL PITS AND ADITS

Reference information

Bibliographic references

  • Deposit

    SOUTHERN PACIFIC COMPANY, 1964, MINERALS FOR INDUSTRY, SOUTHERN CALIFORNIA, V. 3, P. 119

  • Deposit

    WRIGHT, L. A., AND OTHERS, 1953, MINES AND MINERAL DEPOSITS OF SAN BERNARDINO COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 49, NOS. 1 & 2, P. 38

General comments

Subject category Comment text
Deposit VEINS, FEW IN.-50 FT. THICK ALONG FAULT ZONE
Deposit CONSOLIDATION FOR OPERATING PURPOSES DURING 1917-18, OF THE CLIPPER MTN., GOLD REEF AND TOM REED MINES. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1979 Nelson, Scott C. (Albers, John, P.) 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.