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Borasco

Past Producer in Mono county in California, United States with commodities Silver, Lead
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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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10102940
MRDS ID M010585
Record type Site
Current site name Borasco
Related records 10116073

Geographic coordinates

Geographic coordinates: -118.49151, 37.78354 (WGS84)
Relative position ON BLIND SPRING HILL.

Site location context

Political divisions (FIPS codes)

Mono(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Benton(quadrangle 1:24,000 scale)

Benton Range(quadrangle 1:100,000 scale)

Mariposa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Crowley Lake(hydrologic unit)

Mono-Owens Lakes(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Mono

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002S 032E 07,18 California

Commodities

Commodity Importance
Silver Primary
Lead Secondary

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -118.49151, 37.78354
ListMap

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1885 - 1889 , 1911 - 1912

Mining district

District name Blind Springs Hill

Comments on the production information

  • 48,000 OZ OF AG BY CYANIDATION, 1911 - 1912 SHIPPED SILVER-LEAD ORE, SMELTER RECOVERY WAS 154.8 OZ. AG/TON, AND 20.32 % PB.

Reference information

Bibliographic references

  • Deposit

    GOODWIN, J.G., 1957 , LEAD AND ZINC IN CA.; CA. JOUR. MINES AND GEOLOGY, VOL. 53 , NOS. 3 & 4 ; DIV. OF MINES, P. 556

  • Deposit

    REPT. 17, P. 151, 154; REPT. 12, P. 374-5

  • Deposit

    CALIF. V. 36, NO. 2, PL. 1 AND P. 175

  • Production

    GOODWIN, J.G., 1957 , P. 556

General comments

Subject category Comment text
Deposit SILICEOUS VEINS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-NOV-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.