The Duncan 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
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Duncan Creek Placer MRDS details
Site Name
Primary: Duncan Creek Placer
Commodity
Primary: Gold
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
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
Analytical Data: GROUND RAN ABOUT .036 OZ. PER FT2 OF BEDROCK
Materials
Ore: Gold
Comments
Comment (Location): USGS MF-405, LOC. 30. PLACER GROUND IN LOWER SECTION OF DUNCAN CREEK, A SOUTHWESTWARD FLOWING TRIBUTARY OF POORMAN CREEK. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Development): PLACER GOLD DISCOVERED, 1913. MINED FROM 1913 TO ABOUT 1936. DRIFT MINING REPORTED MAINLY IN THE LOWER PART OF CREEK.
Comment (Deposit): GOLD LIES MOSTLY IN BEDROCK, OF WHICH 2 FEET MUST BE TAKEN UP TO RECOVER GOLD. PAY STREAK IN AN OLD CHANNEL ON THE SE SIDE OF THE CREEK, BUT CLOSE TO IT. UPSTREAM, THE PAY STREAK SWINGS TO THE NW SIDE OF THE CREEK, THEREFORE, THE OLD CHANNEL BEARS NO CLOSE RELATION TO THE PRESENT COURSE OF DUNCAN CREEK. GRAVELS ARE 2-5 FEET THICK AND UNDERLIE 40-50 FEET OF MUCK.
Comment (Workings): SEVERAL SHAFTS SUNK TO BEDROCK FOR PROSPECTING AND DRIFT MINING.
Comment (Geology): POROUS QUARTZ BRECCIA LOOKED LIKE A WEATHERED QUARTZITE CONTAINING ANGULAR QUARTZ PEBBLES. GOLD NOT PRESENT EAST OF DUNCAN CREEK, THIS FACT, PLUS BRECCIA IN GRAVEL, SUGGESTS A NORTHEASTWARD-TRENDING FAULT ZONE HERE. ; MAJOR.UNITS: BEDROCK IS SCHIST NEAR MOUTH OF CREEK. ; REG.COM: PLACER DEPOSITS PROBABLY CLOSE TO LODE SOURCE.
Comment (Deposit): STREAM GRADIENT APPROXIMATELY 100 FEET PER MILE IN LOWER MILE OF CREEK. ; 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 OF 81-170, P. 23.
Reference (Deposit): USGS MF-405 (A-6), LOC. 30
Reference (Deposit): USGS BULL 864-C, P. 163.
Reference (Deposit): USGS OF 77-168 D, P. 85, LOC. 15.
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