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  3. Mineral Resource Data System (MRDS)

Gray Ledge

Past Producer in Siskiyou 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. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10286986
MRDS ID M020229
MAS/MILS ID 0060930013
Record type Site
Current site name Gray Ledge
Alternate or previous names National Defense Claim, Claim No. 1, King Claim, Pink Darling,
Related records 10095197

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -123.02112, 41.32484 (WGS84)
Elevation 1134
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Siskiyou(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tanners Peak(quadrangle 1:24,000 scale)

Hoopa(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Salmon(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Klamath National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Siskiyou

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 040 N 010 W 21 SENWNW California

Commodities

Commodity Importance
Manganese Critical Tertiary
Silica Tertiary

Materials information

Materials Type of material
Muscovite Unknown
Psilomelane Unknown
Quartz Unknown
Rhodochrosite Unknown
Rhodonite Unknown

Nearby scientific data

Main Entrance (1) -123.02112, 41.32484
ListMap

Economic information

Ore body information

  • Strike N65W
    Dip 27S
    Thickness 2.1M
    Length 20.7M
    Width 10M
    Depth to top 1M
    Field Value
    MAS Matrix # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 IRREGULAR
    Type of Orebody #3 DISSEMINATED
    Primary mode of Origin OXIDATION
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control LITHOLOGY
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. NONE
    Strike And Dip N65W:27S
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 1
    Min. Thick. Unconsol. Mat. 0
    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 Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1941

Mining district

District name Liberty District

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Minerals Only

Land status

Ownership category National Forest

Ownership information

  • Type Unknown
    Owner U.S. Forest Service
    Interest 100
    Home office California
    Year 1948

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    TRENGOVE-RECON OF CAL MN DEPS-USBM.RPT.OF INVEST.5579-1960

General comments

Subject category Comment text
Deposit 9-4-75-A SMALL AMT OF GREEN CRYSTAL MINERAL ASSOCIATED WITH RHODON MAY BE JOHAN

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.