Tonopah Divide Mine

Site Name

Primary: Tonopah Divide Mine
Secondary: Gold Mountain
Secondary: Gold Hill Mine
Secondary: Falcon Exploration Mine and Mill.

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Commodity

Primary: Silver
Primary: Gold
Tertiary: Molybdenum
Tertiary: Copper
Tertiary: Lead
Tertiary: Zinc

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Location

State: Nevada
County: Esmeralda
District: Divide District (Gold Mountain District)

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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: Surface/Underground

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Ownership

Owner Name: Ebco Enterprises, Stephen Eakle, General Manager
Home Office: P. O. Box 847, Tonopah, NV 89049
Years: 1983 -

Owner Name: Crown Resource Corp. And East-West Minerals, Inc.
Years: 1987 -

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Production

Year: 1931
Material type: AG ORE
Description: Ap_Grade: ^4 Tons Assayed 16 Oz/T Au, 16,000 Oz/T Ag

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Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1918
Discovery Year: 1901
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

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Physiography

Not available

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Mineral Deposit Model

Model Name: Epithermal vein, Comstock

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Orebody

Form: TABULAR

Form: TABULAR

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Structure

Type: L
Description: Faulting

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Alterations

Alteration Type: L
Alteration Text: Minor Silicification, Sericitization, Oxidation, Pyritization; Potassic, Phyllic, Propylitic, Zoned Around Faults & Fractures

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Rocks

Name: Volcanic Breccia (Agglomerate)
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Volcanic Breccia (Agglomerate)
Role: Associated
Age Type: Host Rock
Age Young: Pliocene

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Analytical Data

Analytical Data: AVERAGE GRADE-25 OZ/TON AG AND $2.50/TON IN GOLD (ABOUT 0.08 OZ/TON AU)

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Materials

Ore: Chalcopyrite
Ore: Sphalerite
Ore: Cerargyrite
Ore: Molybdenite
Ore: Powellite
Ore: Gold
Gangue: Quartz
Gangue: Pyrite
Gangue: Limonite
Gangue: Sericite
Gangue: Kaolinite

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Comments

Comment (Location): UTM IS TO MINE BUILDINGS SHOWN ON TOPO MAP AT MINE ; INFO FROM LAND.ST :1972

Comment (Production): EARLY ORE SHIPPED TO THE MILL OF THE TONOPAH-MACNAMARA MINING CO. IN TONOPAH (CHIEFLY FROM DEVELOPMENT WORK.) ORE IN 1931 WAS SHIPPED TO THE SELBY SMELTER AND TO THE DESERT MILL AT MILLERS.

Comment (Development): ORIGINALLY MINED ON A SMALL SCALE FOR GOLDSINCE 1902; A RICH SILVER LODE WAS CROSS CUT UNEXPECTEDLY IN 1917. LISTED AS ANACTIVE, OPEN PIT, GOLD-SILVER MINE IN 1981, EMPLOYING A TOTAL OF 40 PERSONS. TONOPAH-GOLD MTN MINING CO. ORGANIZED IN 1902 TO MINE GOLD. WINGFIELD AND BROUGHERREORGANIZED IT IN 1912 AS THE TONOPAH-DIVIDE MINING A MR. T. WILLIAMSON WAS OWNER AND OPERATOR IN 1931. THIS HAS BEEN THE DISTRICTS BIGGEST PRODUCER. LISTED ASAN ACTIVE OPEN PIT GOLD-SILVER MINE AND MING 35 WORKERS. MUCH EXPLORATION ACTIVITY IN 1970'S AND 1980'S.

Comment (Deposit): First Production Year: (AG) 1918

Comment (Workings): VERTICAL SHAFT 600 FT DEEP WITH CROSSCUTS TO LODE ON 165, 265, 365, 470, 580 FT LEVELS (1921) DRIFTS RUN ALONG THE LODE FROM THE CROSSCU TS. VERTICAL SHAFT HAD ATTAINED DEPTH OF 1445 FT. BY 1923 OPEN PIT (1981). OPEN PIT IS JUST SE OF THE OLDTONOPAH DIVIDE SHAFT.

Comment (Geology): LODE IS CUT BY LAYERS OF WHITE SERICITE UP TO SEVERAL INCHES THICK

Comment (Deposit): FALCON EXPLORATION/1000 TPD IN 1981-FIRST LOAD OF ORE HAULED JULY 17, 1981, CYANIDE HEAP LEACH OPERATION. OPERATION WAS EXPECTEDTO LAST 5 YEARS IN 1981 ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Comment (Deposit): TONOPAH-DIVIDE LODE HAS WELL-DEFINED WALLS. 13 CLAIMS COVERING 150 ACRES IN 1921 GOLD MOUNTAIN GOLD VEIN IS ON TONOPAH-DIVIDE PROPERTY. GOLD VEIN IS 0.5 FT WIDE, CARRYING $40/TON AU (1921)

Comment (Deposit): Discovery Year: SILVER-1917; GOLD-1901

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References

Reference (Deposit): ALBERS, J.P. AND STEWART, J.H., 1972, GEOLOGY AND ORE DEPOSITS OF ESMERALDA COUNTY, NV; N.B.M.G. BULL. 78.

Reference (Deposit): KNOPF, ADOLPH, 1921, THE DIVIDE SILVER DISTRICT, NEVADA; U.S.G.S. BULL. 715, P. 147-170.

Reference (Deposit): STATE INSPECTOR OF MINES, 1981, DIRECTORY OF NEVADA MINE OPERATIONS ACTIVE IN CALENDAR YEAR 1981

Reference (Deposit): N B M G REPORT 33, P. 124.

Reference (Deposit): GARSIDE, L.J. AND TINGLEY, J.V., 1982, FIELD EXAMINATION, NBMG, 26 MAR 82

Reference (Deposit): NBMG BULL 92, P. 121-128

Reference (Deposit): SMITH, A.M., AND CARPENTER, JAY, 1931, UNPUBLISHED NOTES ON INSPECTION TRIP TO TONOPAH DIVIDE MINE; NBMG FILE 87, ITEM 1.

Reference (Deposit): THE MINING RECORD NEWSPAPER, AUG. 26, 1981, "FALCON EXPLARATION REOPENS NEVADA GOLD HILL MINE."

Reference (Deposit): TONOPAH TIMES BONANZA, AUG. 6, 1981

Reference (Deposit): THE NORTHERN MINER, 1980 < < 11) TONOPAH TIMES BONANZA, OCT 25, 1974 < < 12) EUREKA SENTINEL, 1972 < <13) WEED, W.H., ED., 1920, THE MINES HANDBOOK, VOL XIV, P. 1162-1164

Reference (Production): KNOPF, 1921, P 165.; LINCOLN, F.C., P. 64; BONHAM & GARSIDE, P. 125.

Reference (Reserve-Resource): KNOPF, A., 1921, P. 167.

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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.