Granite Gold Mining Co.

The Granite Gold Mining Co. 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: Granite Gold Mining Co.
Secondary: El Primero Mining and Milling Co.

Commodity

Primary: Gold
Tertiary: Zinc
Tertiary: Antimony
Tertiary: Lead
Tertiary: Copper

Location

State: Alaska
District: Prince William Sound District

Land Status

Land ownership: State
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
Year First Production: 1914
Year Last Production: 1917
Discovery Year: 1912
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: L
Description: Adjacent To Port Wells Fault

Alterations

Alteration Type: L
Alteration Text: Granite Shows Signs Of Unspecified Hydrothermal Alteration Near Fissure

Rocks

Not available

Analytical Data

Analytical Data: ASSAYS AVERAGED 0.6 OZ/TON AU WITH MAXIMA OF 2.5 OZ/TON AU AND MINIMA OF 0.3 OZ/TON AU

Materials

Ore: Galena
Ore: Gold
Ore: Stibnite
Ore: Sphalerite
Ore: Chalcopyrite
Gangue: Calcite
Gangue: Quartz
Gangue: Pyrite

Comments

Comment (Production): ADDITIONAL PRODUCTION OF UNKNOWN AMOUNTS OF GOLD IN LATE 1920'S AND 1930'S

Comment (Location): DEPOSIT NUMBER IS THE MAP LOCATION NUMBER FROM MF-880A. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Deposit): FISSURE IN INTERBEDDED SLATES AND GRAYWACKES AND IN BIOTITE GRANITE STOCKS AVERAGES 3 FEET IN WIDTH AND CONTINUES FOR AN UNSPECIFIED LENGTH. IN THE PORTION WITH SEDIMENTARY COUNTRY ROCK, THE FISSURE CONSISTS OF SHATTERED SEDIMENTS CEMENTED BY A NETWORK OF QUARTZ VEINLETS. IN THE GRANITE, THE FISSURE IS MORE COMPLETELY FILLED WITH QUARTZ, THOUGH INCLUSIONS OF GRANITE ARE STILL PRESENT. THE ORE BODY IS OFFSET BY SEVERAL FAUTS. SEVERAL SIMILAR FISSURES ARE SUPPOSED TO BE ON SITE, BUT NO POSITIVE INFORMATION INLITERATURE

Comment (Workings): SEVERAL SHAFTS AND DRIFTS ON 3 LEVELS

Comment (Deposit): LARGEST GOLD PRODUCING SITE ON PRINCE WILLIAM SOUND DURING THE PERIOD 1914-1917 ; INFO.SRC : 1 PUB LIT

References

Reference (Deposit): USGS BULLETIN 622, P. 135-138

Reference (Deposit): MINES HANDBOOK, V.14, 1920: NEW YORK, W.H. WEED, P. 147

Reference (Deposit): USGS MISCELLANEOUS FIELD STUDIES 880-A, LOCATION 120

Reference (Deposit): USGS OPEN FILE 80-621, P. 95

Reference (Production): MINES HANDBOOK, V.14, 1920: NEW YORK, W.H. WEED, P.147

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.