Goldwin Gold-Silver Mine

The Goldwin Gold-Silver Mine is a gold mine located in Alaska at an elevation of 200 feet.

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: Goldwin Gold-Silver Mine

Commodity

Primary: Gold
Secondary: Silver
Tertiary: Copper

Location

State: Alaska
District: Chichagof

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

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1920
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: PINCH AND SWELL, LENS

Structure

Not available

Alterations

Not available

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Analytical Data

Analytical Data: MAXIMUM VALUE FROM VEIN IN UPPER PROSPECT IS 69 OZ/TON AU AND 5.3 OZ/TON AG, BUT MOST VALUES ARE MUCH LOWER. OTHER SAMPLES ONLY GAVE UP TO 0.24 OZ/TON AU AND 0.89 OZ/TON AG-USGS B 1058-E, P. 206. DURING MINING, ASSAYS WERE SAID TO AVERAGE $60/TON (1.7 OZ AU/TON IN 1939) ACCORDING TO USGS B 929, P. 145.

Materials

Ore: Chalcopyrite
Gangue: Pyrite
Gangue: Quartz

Comments

Comment (Development): 13 CLAIMS STAKED AS PARAMOUNT GROUP IN 1920. 300 FT. ADIT DRIVEN BEFORE 1941, SURFACE MINING OF VEINS 1938-39 OF MOST HIGH-GRADE GOLD BEARING QUARTZ. 2 LODE CLAIMS STAKED IN 1953.

Comment (Deposit): LOWER PROSPECT CONSISTS OF N 5 DEGREES-25 DEGREES E STRIKING 50 DEGREES NW DIPPING QUARTZ VEIN PINCHING AND SWELLING FROM 0-2 FT. WIDE, WITH AVERAGE WIDTH OF 14 IN., AND 400 FT. LONG. VEIN IS IN DIORITE, AND CONTAINS SPARSE PYRITE, CHALCOPYRITE, AND GOLD. SECOND VEIN, IN UPPER PROSPECT, LIES IN SMALL FAULT STRIKING N 60 DEGREES E, DIPPING 85 DEGREES SE. VEIN IS LENTICULAR WITH MAXIMUM THICKNESS OF 2 FT., AND CONTAINS PYRITE AND GOLD. MAXIMUM LENGTH IS 240 FT. ALTERED DIORITE WALL ROCK CONTAINS SOME GOLD UP TO 4-8 FT. FROM FAULT. A THIRD, ALMOST INACCESSABLE VEIN ON E SIDE OF GULLY AT 1400 FT. ELEVATION IS FROM 5-8 IN. THICK, AND CONTAINS QUARTZ AND FREE GOLD.

Comment (Location): USGS B 1058-E, P. 205, FIG. 41; USGS MF-467, LOC. 3; USGS MF-1476 B, LOC. 2. LOCATION IS AT ADIT AT LOWER PROSPECT. UPPER PROSPECT IS 4,000 FT. SW AT 1,100 FT. ELEVATION. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Workings): 300 FT. LONG ADIT FOLLOWS QUART VEIN ON LOWER PROSPECT. NUMEROUS PITS AND TRENCHES ALSO CUT.

Comment (Deposit): SAME DIORITE BODY AS EL NIDO MINE. ; INFO.SRC : 1 PUB LIT

References

Reference (Deposit): USGS B 929, P. 145 (1941)

Reference (Deposit): USGS B 1058-E, P. 204-208 (1959)

Reference (Other Database): BAG-B-1058-E-FIG-41

Reference (Deposit): USGS MF-467, LOC. 3 (1972)

Reference (Deposit): USGS OF 78-450

Reference (Deposit): USGS MF-1476 B, LOC. 2

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.