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Bryan Mine

Past Producer in Lander county in Nevada, United States with commodities Gold, Copper, Silver
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Geologic information

Identification information

Deposit ID 10043992
MRDS ID M231305
Record type Site
Current site name Bryan Mine
Alternate or previous names El Dorado

Geographic coordinates

Geographic coordinates: -117.12012, 40.56212 (WGS84)
Elevation 1890
Relative position 12 MILES SW OF TOWN OF BATTLE MOUNTAIN
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Geographic areas

Country State County
United States Nevada Lander

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 031N 043E 15 Nevada

Comments on the location information

  • 3/4 MILE SE OF GALENA TOWNSITE

Commodities

Commodity Importance
Gold Primary
Copper Secondary
Silver Secondary

Materials information

Materials Type of material
Pyrite Ore

Alteration

  • (Local) Pyritization

Analytical data

Result ORE AVERAGED $12/TON IN GOLD IN 1880'S 151 SAMPLES AVERAGED $4.39 IN AU & AG IN OXIDIZED ZONE AND $1.30/TON IN SULFIDE ZONE

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Harmony Formation;Scott Canyon Formation
    Rock description Harmony Formation;Scott Canyon Formation
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

(1) -117.12012, 40.56212
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Geologic structures

Type Description Terms
Regional Scott Canyon And Dewitt Thrust Faults
Local Ne-And Nw-Trending Faults. Plumas Fault

Ore body information

  • General form TABULAR
    Strike N-S
    Dip STEEPLYW
    Thickness 3.05M

Controls for ore emplacement

  • Fracture Zone, Brecciation

Comments on the geologic information

  • FRACTURE ZONE RANGES FROM A FEW INCHES TO 10 FEET WIDE

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year <1880
Year of first production 1885

Mining district

District name Battle Mountain District

Land status

Ownership category Private

Comments on the production information

  • TOTAL PRODUCTION IS UNKNOWN, BUT AT LEAST 75.7 OZ. AU AND 262 OZ AG. WERE PRODUCED.

Comments on the workings information

  • TUNNELS, SHAFTS

Comments on development

  • ORE WAS MILLED IN AN AMALGAMATION PLANT ON DUCK CREEK IN 1880'S; IT HAD BEEN REMOVED BY 1912

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M231305

Bibliographic references

  • Deposit

    STEWART, J.H., MCKEE, E.H., AND STAGER, H.K., 1977, GEOLOGY AND MINERAL DEPOSITS OF LANDER COUNTY, NEVADA: NBMG BULL. 88.

  • Deposit

    HILL, J.M., 1915, SOME MINING DISTRICTS IN NE CALIFORNIA AND NW NEVADA: U.S.G.S. BULL. 594

  • Deposit

    ROBERTS, R.J., AND ARNOLD, D.C., 1965, ORE DEPOSITS OF THE ANTLER PEAK QUADRANGLE HUMBOLDT AND LANDER COUNTIES, NEVADA: U.S.G.S. PROF. PAPER 459-B.

  • Production

    STEWART, MC KEE & STAGER, 1977.

General comments

Subject category Comment text
Deposit THE BRYAN VEIN WAS DEVELOPED BY SEVERAL TUNNELS AND A SHAFT ON BOTH SIDES OF A SOUTH BRANCH OF DUCK CREEK. ORE WAS MILLED (IN 19880'S) IN A 10-STAMP AMALGAMATING PLANT ON DUCK CREEK, 1/2 MILE NE OF THE SHAFT. THIS MILL HAD BEEN REMOVED PRIOR TO 1912.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1980 Flynn, Patricia Dodd Nevada Bureau of Mines and Geology