Treadwell Mines

The Treadwell Mines is a gold mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Treadwell Mines
Secondary: Alaska Treadwell
Secondary: Alaska Mexican
Secondary: Ready Bullion
Secondary: Seven Hundred Foot

Commodity

Primary: Gold
Secondary: Silver
Secondary: Lead
Tertiary: Zinc
Tertiary: Copper
Tertiary: Molybdenum
Tertiary: Tungsten
Tertiary: Antimony
Tertiary: Arsenic

Location

State: Alaska

Land Status

Not available

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Not available

Production

Year: 1922
Time Period: 1885-1922

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1882
Year Last Production: 1922
Discovery Year: 1881
Years of Production:
Organization:
Significant: N
Deposit Size: L

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: TABULAR

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Diorite Highly Altered (Albitized & Pyritized) In Part

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Molybdenite
Ore: Realgar
Ore: Chalcopyrite
Ore: Sphalerite
Ore: Tetrahedrite
Ore: Gold
Ore: Orpiment
Ore: Galena
Gangue: Pyrrhotite
Gangue: Quartz
Gangue: Pyrite
Gangue: Albite
Gangue: Magnetite
Gangue: Rutile
Gangue: Calcite

Comments

Comment (Reserve-Resource): NORTHERN MINER MARCH 29, 1984, P. 12

Comment (Production): CUMULATIVE PRODUCTION FIGURES ARE FOR ALL FOUR MINES

Comment (Development): LEASED TO BARRICK RESOURCES IN 1984 FOR LONG TERM EXPLORATION, DEVELOPMENT, AND PRODUCTION (?) PROGRAM

Comment (Deposit): GOLD-AND SULFIDE-BEARING QUARTZ VEINS IN SHATTERED ALBITE DIORITE SILLS IN SEQUENCE OF SLATE BELOW GREENSTONE HANGING WALL. SLATE HORSES IN VEINS ALSO MINERALIZED

Comment (Workings): ALL FOUR MINES OF THE TREADWELL COMPLEX WERE CONNECTED UNDERGROUND. THE READY BULLION MINE WAS SEPARATED FROM THE OTHERS BY A WATERTIGHT BULKHEAD AND WAS NOT FLOODED WITH THE TREADWELL, SEVEN HUNDRED FOOT, AND MEXICAN MINES IN 1917, ALSO FOUR MAJOR GLORY HOLES.

Comment (Deposit): FOUR MAJOR MINES OWNED BY THREE (RELATED) COMPANIES MINED SEGMENTS OF ONE MAJOR VEIN STRUCTURE OVER 3500 FT LONG. THREE OF THE FOUR MINES WERE FLOODED BY SEAWATER IN 1917 AND NEVER REOPENED. THE THREE COMPANIES MERGED FOLLOWING THE FLOODING. THE FOURTH MINE CLOSED IN 1922. ALL PROPERTIES WERE SOLD TO THE ALASKA JUNEAU GOLD MINING CO. IN 1928. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

References

Reference (Deposit): USGS OFR 78-374, P. 125-128

Reference (Deposit): STONE, DAVID, AND STONE, BRENDA, 1980, HARD ROCK GOLD: JUNEAU, CITY AND BOROUGH OF JUNEAU, JUNEAU CENTENNIAL COMMITTEE, 108 P.

Reference (Deposit): NORTHERN MINER, MARCH 29, 1984, P. 12

Reference (Production): USGS OFR 78-374

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