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  3. Mineral Resource Data System (MRDS)

Brooklyn

Past Producer in San Bernardino county in California, United States with commodities Gold, Silver, Copper
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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. Alteration
  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. Production statistics
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10035719
MRDS ID M023607
Record type Site
Current site name Brooklyn
Related records 10164007

Geographic coordinates

Geographic coordinates: -115.67868, 34.03546 (WGS84)
Elevation 701
Relative position 6.5 MI. S. SOUTH SHORE, DALE LAKE

Site location context

Political divisions (FIPS codes)

San Bernardino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

New Dale(quadrangle 1:24,000 scale)

Sheep Hole Mountains(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

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States California San Bernardino

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 001S 012E 36 California

Comments on the location information

  • UTM ACC. Original location was a little too far south. Property is just north of county line. Location taken from Google Earth using their county lines. Photo quality is terrible.

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Copper Tertiary

Alteration

  • (Local) Oxidation

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

Nearby scientific data

(1) -115.67868, 34.03546
ListMap

Economic information

Ore body information

  • Strike NW
    Dip 70SE
    Thickness 1.22M

Economic information about the deposit and operations

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

Mining district

District name Dale

Production statistics

  • Year 1930
    Period 1893-1930
    Material AU ORE
    Accuracy Estimate
    Description Cp_Grade: ^$16/Ton Au, 1-3 Oz. /Ton Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 56g/mt

Comments on the production information

  • OUTPUT DURING 1930'S ESTIMATED OVER $13,000. NO OTHER PRODUCTION RECORDS FOUND

Comments on the workings information

  • 2 MINES. PRINCIPLE WORKINGS LIE ALONG 2 MAIN VEINS, THE LOS ANGELES AND BROOKLYN. 550 FT. ADIT ON BROOKLYN. ALSO A 200 FT. WINZE. LEVELS AT 60, 110, 160 AND 200 FT. DEVELOPED 2 ORE SHOOTS, ONE 100 FT. LONG, OTHER 200 FT. MILL DETAILED DESCRIPTIONS OF WORKINGS IN SAMPSON & TUCKER (1931).

Reference information

Bibliographic references

  • Deposit

    WRIGHT, L.A. AND OTHERS, 1953, MINES AND MINERAL DEPOSITS OF SAN BERNARDINO COUNTY, CALIFORNIA: CALIF. JOURNAL OF MINES AND GEOLOGY, V. 49, NOS. 1 & 2, P. 73.

  • Deposit

    TUCKER, W.B., AND SAMPSON, R.J., 1931, GOLD-SAN BERNARDINO COUNTY, CALIF.: CALIF. JOUR. MINES AND GEOLOGY, V.27, P.289

  • Production

    WRIGHT (1953)

  • Deposit

    CALIF. DIV. MINES AND GEOL. OPEN-FILE REPORT 77-14, 1977, P. 301-306.

General comments

Subject category Comment text
Deposit 5 PARALLEL VEINS, 1000 FT. APART. BROOKLYN VEIN IS 2-4 FT. THICK &AND IS EXPOSED FOR 4500 FT.
Deposit PART OF BROOKLYN AND LOS ANGELES MINE. WORKED BY BROOKLYN MINING CO. FROM 1901-1916. SEE BRANNIGAN MINE. ; 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.

External references

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.