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Silver Bar Bryan, Silver

Producer in Mariposa county in California, United States with commodities Silver, 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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Ownership information
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10031269
MRDS ID M009935
Record type Site
Current site name Silver Bar Bryan, Silver
Related records 10139985

Geographic coordinates

Geographic coordinates: -119.91292, 37.42382 (WGS84)
Relative position PROBABLY NEAR COMMON 1/4 - CORNER. ON THE WALLMAN RANCH.

Site location context

Political divisions (FIPS codes)

Mariposa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mariposa(quadrangle 1:24,000 scale)

Shaver Lake(quadrangle 1:100,000 scale)

Mariposa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fresno River(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Mariposa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 06S 19E 08,09 California

Commodities

Commodity Importance
Silver Primary
Gold Primary

Nearby scientific data

(1) -119.91292, 37.42382
ListMap

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Jeffery Investment Co.

Comments on the production information

  • WORKED IN A SMALL WAY PRIOR TO 1927. A SMALL PRODUCTION WAS RECORDED FOR THE YEARS 1909, 1920, 1921. A SMALL PRODUCTION REALIZED IN 1930, MOST OF THE SILVER PRODUCTION BEING IN THAT YEAR. WORKINGS PARTLY CAVED IN SEPTEMBER, 1954.

Comments on the workings information

  • A 257-FT. INCLINED SHAFT, DRIFT ADIT; DRIFTING ON 2 LEVELS AGGREGATES 828 FT.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOLOGY, V. 53, NOS. 1 & 2, PP. 192-194, 329

  • Deposit

    USGS MR-34.

General comments

Subject category Comment text
Deposit FOUR CLAIMS. ORE EXPOSED ON THE DUMP SHOWS GALENA, PYRITE, ARSENOPYRITE AND ARGENTITE. PROUSTITE, PYRARGYRITE, NATIVE SILVER AND GOLD ARE ALSO REPORTED IN THE ORE FROM THE MINE. IN 1939 ORE WAS SAID TO AVERAGE 15-20 OZ. SILVER AND 0.15 OZ. GOLD PER TON. THE TONNAGE OF ORE MINED OR BLOCKED OUT AT THAT TIME WAS ABOUT 4000 TONS. NOTE: THERE IS A PROSPECT SHOWN NEAR (100' FROM LINE) THE E1/4 COR. OF SEC. 8 ON U.S. GEOL. SURVEY QUAD. MARIPOSA, CALIF., 1948 WHICH IS PROBABLY THE LOCATION OF THIS MINE. 17TH REPT. ST. MIN. P. 138 (SHOWS LOC. IN 20-5S-19E)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. 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.