The Ironside Bar 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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Ironside Bar Placer MRDS details
Site Name
Primary: Ironside Bar Placer
Commodity
Primary: Gold
Location
State: Alaska
District: Koyukuk
Land Status
Land ownership: BLM Administrative Area
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 25-50 CENTS PER BEDROCK FOOT (AU AT $20.67 OZ.).
Materials
Ore: Gold
Comments
Comment (Deposit): GOLD-BEARING BENCH GRAVELS SIMILAR TO THOSE OF GOLD BENCH. GOLD DISTRIBUTED THROUGH 6-30 FT. OF GRAVEL, BUT MOST IS ON (FALSE?) BEDROCK OF BLUE CLAY.
Comment (Deposit): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Comment (Location): USGS MF-387, LOC. 4. IRONSIDE BAR MINE MARKED ON BETTLES (D-2) ALONG SOUTH SIDE OF SOUTH FORK OF KOYUKUK RIVER, ABOUT 1 MILE UPSTREAM FROM GOLD BENCH. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Production): LUMPED PRODUCTION OF IRONSIDE BENCH AND EAGLE BLUFF (WISEMAN QUAD.), 1900, WAS ABOUT 50 OZ. AU.
Comment (Development): SMALL-SCALE MINING IN EARLY 1900'S AND IN 1930'S.
Comment (Deposit): RIVER GRADIENT UNDER 20 FT. PER MILE. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
References
Reference (Deposit): USGS MF-387, (D-2), LOC. 4.
Reference (Deposit): USGS BULLETIN 532, P. 107.
Reference (Deposit): ALASKA DEPARTMENT OF MINES UNPUBLISHED REPORT, 1968, P. 154-155.
Reference (Deposit): USGS OF 78-94, P. 12.
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.
