Perseverance Mine

The Perseverance Mine 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: Perseverance Mine
Secondary: Alaska-Juneau Mining Co.
Secondary: Alaska Gastineau Gold Mining Co.

Commodity

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

Location

State: Alaska
District: Juneau

Land Status

Land ownership: National Forest
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.

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Not available

Production

Year: 1910
Mined: 1097672.350 mt
Material type: ORE
Description: Ap_Grade: ^Tons Of Ore Milled: 1,115,294
Year: 1911
Mined: 1862881.940 mt
Material type: ORE
Description: Ap_Grade: ^Tons Of Ore Milled: 1,892,788

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Year: 1885
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: R
Description: See Alaska-Juneau

Type: L
Description: Large Fold Shows Mass Of Small Folds In Hinge With Axial Planar Cleavage Parallel To Limbs Of Large Fold

Alterations

Alteration Type: L
Alteration Text: Biotization

Rocks

Name: Gneiss
Role: Associated
Age Type: Associated Rock Unit
Age Young: Paleocene

Name: Gneiss
Role: Associated
Age Type: Associated Rock
Age Young: Paleocene

Analytical Data

Analytical Data: 0.1 OZ/TON AG, 0.1% PB, 0.2% ZN, TRANS. AM. INST. MINING AND METALLURGICAL ENG., VOL. 63, P. 464
Analytical Data: LOW GRADE AU DEPOSIT

Materials

Ore: Chalcopyrite
Ore: Sphalerite
Gangue: Quartz
Gangue: Pyrite
Gangue: Tourmaline
Gangue: Pyrrhotite

Comments

Comment (Deposit): PART OF ALASKA JUNEAU LODE SYSTEM; NETWORK OF QUARTZ VEINS AND STRINGERS IN ZONE ABOUT 800 FT WIDE IN PERSEVERANCE SLATE; QUARTZ VEINS CONTAIN 1.5-2.0% SULFIDES, INCLUDING PYRRHOTITE, GALENA, SPHALERITE, PYRITE, RARE CHALCOPYRITE, AND ARSENOPYRITE

Comment (Workings): DEVELOPED 1915-1921 AS PART OF VERY LARGE SCALE OPERATIONS OF THE ALASKA GASTINEAU MINING CO.; DEVELOPMENTS INCLUDED 2500 FT ALEXANDER CROSSCUT, 12,000 FT SHEEP CREEK ADIT, 3 HYDROELECTRIC PLANTS AND 6000 TPD MILL; MINE WAS LATER CONNECTED TO A.J. MINE

Comment (Geology): SEE COMMENTS: ALASKA-JUNEAU. MT. JUNEAU PLUTON; PART OF COAST RANGE INTRUSIVE COMPLEX TO THE NE

Comment (Deposit): SEE ALSO: ALASKA-JUNEAU MINE; SOME DATA COMBINED FOR A.J., PERSEVERANCE AND EBNER AS THEY ARE ALL ON THE SAME LODE SYSTEM; REASONS FOR FAILURE OF ALASKA GASTINEAU LARGE SCALE, LOW GRADE ENTERPRISE: 1. OVERLY OPTIMISTIC INITIAL ESTIMATE OF GRADE, 2. UNCONTROLLED DILUTION OF ORE BY CAVING OF WASTE ROCK IN THE STOPES, 3. LABOR SHORTAGE AND INCREASE IN OPERATION COSTS DUE TO WWI, AND 4. REDUCED MILL EFFICIENCY DUE TO INTRODUCTION OF WET ORE INTO DRY-CRUSHING SYSTEM, USGS OFR 60, P. 19 ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Commodity): AU STRONGLY ASSOCIATED WITH SULFIDES, ESP. SPHALERITE; AU: AG RATIO 1:1

Comment (Location): INTERSECTION OF ALEXANDER CROSSCUT AND SHEEP CREEK ADIT; JUST N OF MAIN ORE BODY AND LARGEST CONCENTRATION OF WORKINGS LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Production): GOLD AT 20.67 DOLLARS/FINE OZ; UNKNOWN AMOUNT OF PRODUCTION 1895-1907; PRODUCTION FIGURES DO NOT INCLUDE LESSER AMOUNTS OF SILVER, LEAD AND ZINC; PRODUCTION FROM 1934 TO 1944 INCLUDED AS PART OF ALASKA-JUNEAU MINE, SEE: ALASKA-JUNEAU

Comment (Development): STAKED 1885; LARGE SCALE DEVELOPMENT BEGAN IN 1915 UNDER ALASKA GASTINEAU MINING CO.; MINE CLOSED 1921 DUE TO LOW GRADE ORE; ACQUIRED BY ALASKA JUNEAU GOLD MINING CO. IN 1933; OPERATED AS PART OF A.J. MINE FROM 1934-TO MINE CLOSING IN 1944; SEE COMMENTS FOR ALASKA-JUNEAU; 10 PATENTED LODE CLAIMS

References

Reference (Deposit): TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, VOL. 63, P. 464-506

Reference (Deposit): USGS BULL 662, P. 80

Reference (Deposit): USGS OFR 60, P. 17-19, 26

Reference (Deposit): USGS BULL 917-C, P. 186-187

Reference (Deposit): ADGGS GR 1, P. 1, 7

Reference (Deposit): USGS BULL 287, P. 58-59, 74-76

Reference (Deposit): USGS BULL 314, P. 55

Reference (Deposit): USBM BULL 153, P. 17-18

Reference (Deposit): USGS OFR 85-717, P. 181

Reference (Other Database): BAG-OFR-85-717-168

Reference (Production): USGS BULL 917-C, P. 186, TABLE 5; USGS OFR 60, P. 26, TABLE 1; USGS OFR 85-717, NO. J168

Reference (Deposit): STONE, DAVID AND STONE, BRENDA, 1983, HARD ROCK GOLD; THE STORY OF THE GREAT MINES THAT WERE THE HEARTBEAT OF JUNEAU: SEATTLE, WA, VANGUARD PRESS, INC., P. 55

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