Dexter Creek Placer

The Dexter 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: Dexter Creek Placer

Commodity

Primary: Gold

Location

State: Alaska

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
Year First Production: 1900
Year Last Production: 1936
Discovery Year: 1899
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: AU WORTH $18.60/OZ, PRICE OF AU = $20.67, USGS BULLETIN 263, P. 209.

Materials

Ore: Gold

Comments

Comment (Location): UPSTREAM LIMIT OF DREDGE TAILINGS AS MAPPED ON USGS C1 TOPO MAP; CREEK WAS MINED FROM MOUTH TO HEADWATER TRIBS. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Deposit): AU ON BLUE CLAY LAYER 5 FT BELOW SURFACE NEAR MOUTH OF CREEK; AU LIES ON BEDROCK AND IN BEDROCK CREVICES A FEW IN DEEP IN SCHIST, UP TO 20-30 FT DEEP WHERE BEDROCK IS LIMESTONE; STREAM GRAVELS: 3-10 FT DEEP; BENCH GRAVELS UP TO 30 FT DEEP; OLD CHANNEL 200 FT N OF CREEK ABOUT 1 MILE ABOVE MOUTH.

Comment (Production): 1900 PRODUCTION FROM DEXTER CR. PLUS TRIBS: $300,000; PRICE OF AU = $20.67/FINE OZ, REF. 1.

Comment (Development): DRIFT MINING IN EARLY YEARS; HYDRAULIC MINING AFTER COMPLETION OF MIOCENE DITCH IN 1903; DREDGE OPERATED: 1918-1926.

Comment (Workings): MUCH WATER LOST TO UNDERGROUND FLOW.

Comment (Geology): STREAM GRAVELS: MICA SCHIST, LIMESTONE AND QUARTZ PEBBLES MIXED WITH LARGE BOULDERS OF LIMESTONE; BENCH DEPOSIT 100 YD ABOVE GROUSE G. CONSISTED OF ABOUT 5 FT OF YELLOW CLAY OVER 15 FT OF POORLY SORTED SCHIST, LIMESTONE, GRANITE AND SANDY CLAY GRAVELS. ; MAJOR.UNITS: LIMESTONE AND SUBORDINATE MICA- AND CHLORITIC SCHIST ; REG.COM: HIGH BENCH GRAVELS

Comment (Deposit): GRADIENT: 128 FT/MI ; 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 BULLETIN 783, P. 18.

Reference (Deposit): USGS BULLETIN 792, P. 24.

Reference (Deposit): USGS BULLETIN 797, P. 30.

Reference (Other Database): BAG-MF-463-118

Reference (Deposit): BROOKS AND OTHERS, 1901, USGS SPEC. PUB., P. 69, 75-76.

Reference (Deposit): USGS BULLETIN 263, P. 209.

Reference (Deposit): USGS BULLETIN 328, P. 176-178.

Reference (Deposit): USGS BULLETIN 533, P. 93-95, 109.

Reference (Deposit): USGS BULLETIN 1374, P. 86.

Reference (Deposit): USGS BULLETIN 739, P. 9.

Reference (Deposit): USGS BULLETIN 773, P. 27.

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