Oest Mine

Site Name

Primary: Oest Mine
Secondary: NBMG # 3654

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Commodity

Primary: Gold
Primary: Silver

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Location

State: Nevada
County: Lyon
District: Comstock Lode

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Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

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Holdings

Not available

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Workings

Type: Underground

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Ownership

Owner Name: Dayton Mining Co.
Years: 1943 -

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Production

Not available

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Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1888
Discovery Year: 1887
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

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Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains

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Mineral Deposit Model

Not available

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Orebody

Form: TABULAR, LENSES

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Structure

Type: R
Description: The Northeast-Trending Fault System Forms A Major Structure That Can Be Traced On The Surface For Over Two Miles Along The Strike

Type: L
Description: Haywood-Oest Fault

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Alterations

Not available

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Rocks

Name: Metavolcanic Rock
Role: Host
Age Type: Host Rock
Age Young: Late Triassic

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Analytical Data

Not available

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Materials

Ore: Electrum
Gangue: Quartz

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Comments

Comment (Development): OEST MINING CO SANK A 300-FT. SHAFT AND RECORDED 1887-1892 PRODUCTION ; ECON.COM: FROM 1887-1892 ABOUT $564,364 FROM 6,588 TONS OR $85/TON. ABOUT 450 TONS OF LOW GRADE $10/TON IN THE 1940S BY DAYTON CO.

Comment (Deposit): VEIN, FAULT ZONE (SILVER CITY FAULT, COMET FAULT, HAYWOOD-OEST FAULT) OREBODY IS NEAR JUNCTION OF TWO VEINS.

Comment (Geology): OREBODY IS WEAR JUNCTION OF TWO VEINS. THE ORE WAS REPORTED TO BE FREE GOLD AND ELECTRUM AND WAS CONCENTRATED IN TABULAR LENSES NEAR THE JUNCTION OF TWO VEINS ALONG THE MAJOR STRUCTURE.

Comment (Deposit): THIS MINE WAS PART OF THE DAYTON MINE PROPERTY AND WAS LOCATED ON THE FOOTWALL OF THE SILVER CITY BRANCH OF THE COMSTOCK LODE. THE DAYTON MINE PURCHASED IT IN 1943. THE OEST MINING COMPANY SANK A 300 FT SHAFT AND RECORDED A PRODUCTION FROM 1887-1892 OF $564,364 FROM 6,588 TONS, OR $85/TON. THE MINERALIZED ZONE IS FROM 40 TO 150 FT WIDE AND CONTAINS SMALL LENSES OF HIGH-GRADE GOLD ORE. THE DAYTON MINED 450 TONS OF $10 ORE. ; INFO.SRC : 1 PUB LIT

Comment (Location): MINING DISTRICT ALSO NOTED AS SILVER CITY. THE MINE IS 3/4 OF A MILE SOUTHWEST OF SILVER CITY.

Comment (Workings): SHAFT, DRIFTS A 300 FOOT SHAFT,DRIFTS, AND RAISES NOT DESCRIBED. THE BIG SHAFT WAS SUNK ON THE FOOTWALL SIDE OF THE SILVER CITY.

Comment (Production): ABOUT 7000 TONS OF MOSTLY HIGH-GRADE ORE $85/TON), MINED FROM 1887-1892,WITH ABOUT 450 TONS OF THAT AVERAGING ONLY $10/TON, MINED LATER BY THE DAYTON, CO.

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References

Reference (Deposit): STODDARD, CARL, AND CARPENTER, J.A., 1950, MINERAL RESOURCES OF STOREY AND LYON COUNTIES, NEVADA: NBMG BULL 49

Reference (Deposit): GIANELLA, V.P., 1936, GEOLOGY OF THE SILVER CITY DISTRICT AND THE SOUTHERN PORTION OF THE COMSTOCK LODE, NEVADA; UNIV. OF NEV. BULL. VOL 30, NO. 9

Reference (Deposit): TELLURIDE CLAIMS SILVER CITY MINING DISTRICT,LYON COUNTY,QUADE VISIT SITE 5-11-89,NBMG UNPUBLISHED MINING DISTRICT FILES (TINGLEY FILES).

Reference (Production): STODDARD, C., AND CARPENTER, J.A., 1950

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Nevada Gold

Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.