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Lead Mountain

Occurrence in San Bernardino county in California, United States with commodities Barium-Barite, Lead, Silver, Gold, Zinc
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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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10077227
MRDS ID W024734
Record type Site
Current site name Lead Mountain
Related records 10140678

Geographic coordinates

Geographic coordinates: -116.93559, 34.91973 (WGS84)
Elevation 732
Relative position 5 MILES NW OF YERMO

Site location context

Political divisions (FIPS codes)

San Bernardino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nebo(quadrangle 1:24,000 scale)

Newberry Springs(quadrangle 1:100,000 scale)

San Bernardino(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Mojave(hydrologic unit)

Northern Mojave(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California San Bernardino

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 010N 001W 36 California

Comments on the location information

  • UTM ACC. ; INFO FROM LAND.ST :UNDETERMINED

Commodities

Commodity Importance
Barium-Barite Critical Primary
Lead Secondary
Silver Secondary
Gold Secondary
Zinc Critical Tertiary

Materials information

Materials Type of material
Cerargyrite Ore
Galena Ore
Barite Gangue
Quartz Gangue

Analytical data

Result PB 15 - 30 %, AU $.40 - 2.00 , AG 6 - 30 OZ.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -116.93559, 34.91973
ListMap

Economic information

Ore body information

  • General form IRREGULAR
    Strike NW
    Dip 40 NE
    Length 396.24M
    Width 30.48M

Controls for ore emplacement

  • Fissure

Comments on the geologic information

  • GEOL.DESC: COUNTY ROCK IS TUFF, LIMESTONE AND ANDESITIC PORPHYRY

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Significant No

Mining district

District name Grapevine

Comments on the workings information

  • SERIES OF OPEN CUTS AND TUNNELS FOR DISTANCE OF 500 FT. PRESENT WORKINGS CONFINED TO TUNNEL DRIVEN NORTH FOR 75 FT. CROSSCUTTING ORE FISSURE. DRIFTS AND STOPING ABOVE THIS LEVEL. NEAR PORTAL OF CROSSCUT TUNNEL, SHAFT HAS BEEN SUNK ON AN INCLINE OF 33 DEG. FOR 210 FT. STOPE 25 FT. WIDE BY 50 FT. LONG, 30 FT. HIGH. AT FLOOR OF STOPE, THERE IS A VERTICAL WINZE 245 FT CONNECTS SHAFT TO TUNNEL 1300 FT. IN LENGTH DRIVEN FROM NORTH.

Reference information

Bibliographic references

  • Deposit

    GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NO. 3 & 4 ; DIV. OF MINES, P. 646 - 647

  • Deposit

    TUCKER, W. B., 1924 , LOS ANGELES FIELD DIVISION; 20TH REPT. STATE MINERALOGIST; CALIF. MIN. BUR., P. 199 - 200

General comments

Subject category Comment text
Deposit WORKED FOR BARITE 1931 - 1933 , NO LEAD - SILVER PRODUCTION. COMPRISED OF 640 ACRES.
Deposit VEIN MATERIAL IS A COARSELY CRYSTALLIZED BARITE, WITH QUARTZ CONTAINING BROWN IRON OXIDES, LEAD CARBONATE, OCHRE, MANGANESE OXIDE AND SILVER CHLORIDES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1978 Fraticelli, L. A. (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.