Grubstake Creek Placer

The Grubstake 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: Grubstake Creek Placer

Commodity

Primary: Gold
Tertiary: Mercury
Tertiary: Tungsten

Location

State: Alaska
District: Bonnifield

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
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

Not available

Materials

Ore: Scheelite
Ore: Gold
Ore: Cinnabar

Comments

Comment (Location): USGS MF-410, LOC. 77, 78, 79. PLACER MINES, LOCATIONS 77 AND 78, MARKED IN SE CORNER OF FAIRBANKS (A-3). COORDINATES GIVEN FOR MINE MARKED NEAR MOUTH OF AURIFEROUS SE TRIBUTARY. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Development): INTERMITTANT MINING, 1905 TO 1940. MINING BY OPEN CUTS. A FEW MILES OF DITCHES BUILT.

Comment (Deposit): GOLD IN BASAL 2 FT. OF STREAM GRAVELS. THICKNESS OF GRAVELS MINED RANGES FROM A FEW INCHES TO 6 FT. GOLD ALSO ON SURFACE OF CLAY BEDROCK. MOST OF MINING IN LOWER MILE OF CREEK; ALSO IN MIDDLE SECTION OF TRIBUTARY ENTERING FROM SE NEAR MOUTH AND IN SPOTS NEAR HEAD. IN LOWER MILE PAY STREAK 25-75 FT. WIDE, BUT OUTSIDE 25 FT. IS REPORTED TO BE PATCHY.

Comment (Deposit): STREAM GRADIENT RANGES FROM 100 FEET PER MILE AT MOUTH TO AROUND 300 FT. PER MILE AT HEAD. LOCATION DISCRIPTION FOR ENTIRE LENGTH OF GRUBSTAKE CREEK AND FOR TRIBUTARY ENTERING NEAR MOUTH FROM THE SE. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Geology): CREEK RISES ON RIDGE OF NENANA GRAVEL. ; MAJOR.UNITS: BEDROCK IN HEADWATER SECTION IS NENANA GRAVEL. BEDROCK FOR MIDDLE AND LOWER PART OF CREEK IS INTERBEDDED CLAY, SAND, GRAVEL, AND COAL OF TERTIARY COAL-BEARING FORMATION. ; REG.COM: GOLD PROBABLY RECONCENTRATED FROM NENANA GRAVELS.

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-410 (A-3), LOC. 77, 78, 79.

Reference (Deposit): USGS BULL. 314, P. 210-211

Reference (Deposit): USGS BULL 501, P. 44, 48

Reference (Deposit): USGS BULL. 662, P. 399-400.

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