Greenstone Creek Placer

The Greenstone Creek Placer 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: Greenstone Creek Placer

Commodity

Primary: Gold
Secondary: Silver
Tertiary: Tin

Location

State: Alaska
District: Ruby

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

Not available

Ownership

Owner Name: Clarence Zaiser
Home Office: Ruby, Ak. 99786
Years: 1975 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1914
Discovery Year: 1913
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Analytical Data: FINENESS 865.75 AU AND 129 AG.

Materials

Ore: Gold
Ore: Cassiterite

Comments

Comment (Deposit): Discovery Year: 1913-14

Comment (Development): DURING THE WINTER OF 1914-1915 ABOUT 40 PROSPECT HOLES WERE SUNK ON THE UPPER PART OF THE CREEK, AND THE FOLLOWING SUMMER ABOUT 65 MORE WERE PUT DOWN FROM 5 TO 17 FEET DEEP TO TEST THE GROUND FOR DREDGING. MINED BY OPEN CUTS 1914-15. DREDGE INSTALLED, 1915; DREDGE OPERATED 1916-17. MINING REPORTED IN MOST YEARS UNTIL 1942 AND AT VARIOUS TIMES BETWEEN 1946 AND 1960. SOME MINING AS RECENTLY AS 1975. MINED IN 1975 BY BULLDOZER.

Comment (Deposit): GOLD ON BEDROCK AND SPOTTILY DISTRIBUTED; PAY STREAK 60-100 FT. WIDE AND APPROXIMATELY 2 MILES LONG. OVERBURDEN MOSTLY GRAVEL; 5-8 FT. THICK IN UPPER PART AND 25 PLUS FEET THICK DOWNSTREAM ABOVE WINTER TRAIL. PAY STREAK FOLLOWS GENERAL COURSE OF CREEK. SOME PLACER CASSITERITE.

Comment (Workings): ALLUVIUM FROZEN. TWO MILES OF CREEK DREDGED 1916-17.

Comment (Location): USGS MF-405, LOC. 23. STRIP MINE MARKED ON RUBY (B-6). COORDINATES GIVEN FOR CONFLUENCE WITH GREENSTONE GULCH. TRIBUTARY OF LONG CREEK. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Geology): HEADWATERS DRAIN AREA OF GRANITE. ; MAJOR.UNITS: BEDROCK IS WEATHERED GREENSTONE.

Comment (Deposit): STREAM GRADIENT APPROXIMATELY 100 FEET PER MILE IN AREA MINED. CREEK THOUGHT TO BE NEARLY WORKED OUT. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Deposit): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

References

Reference (Deposit): USGS MF-405 (B-6), LOC. 23

Reference (Deposit): USGS OF 239, P. 37, 40, 47-48.

Reference (Deposit): USGS OF 77-168 D, P. 86, LOC. 28.

Reference (Deposit): USGS BULL 864-C, P. 146, 152-153.

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