The Monument 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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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.
Monument Creek Placer MRDS details
Site Name
Primary: Monument 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
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1913
Year Last Production: 1933
Discovery Year: 1912
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: AVERAGE FINENESS OF 3 ASSAYS WAS 853 PARTS AU AND 139 PARTS AG.
Materials
Ore: Gold
Ore: Cassiterite
Comments
Comment (Deposit): Discovery Year: 1912-13
Comment (Geology): MAJOR.UNITS: BEDROCK GABBROIC GREENSTONE AND SILICEOUS SCHIST; GRANITE ON HEADWATER DIVIDE TO NORTH. ; REG.COM: LODE SOURCE OF GOLD PROBABLY IN SCHISTOSE ROCKS AND PERIPHERAL TO GRANITE. GRANITE ON HEADWATER DIVIDE TO NORTH IS PROBABLY THE SOURCE AREA FOR METALS IN PLACER DEPOSITS.
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-405, LOC. 24. PLACER GROUND FROM A POINT HALF A MILE ABOVE RABBIT CREEK DOWNSTREAM FOR ABOUT A MILE. COORDINATES GIVEN FOR DISCOVERY CLAIM AT MOUTH OF RABBIT CREEK. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Development): GOOD PLACER GROUND DISCOVERED ABOUT MIDWAY IN STREAM'S COURSE, WINTER 1912-13. MINING, SUMMER 1913. SPORADIC MINING 1913 TO 1933; UNDERGROUND DRIFT METHODS REPORTED.
Comment (Deposit): GOLD OCCURS IN STREAKS OF FINE GRAVEL 3 TO 6 INCHES THICK IN MAIN BODY OF GRAVEL. THESE STREAKS ARE IRREGULARLY DISTRIBUTED BOTH VERTICALLY AND HORIZONTALLY. LITTLE OR NO GOLD IS FOUND ON BEDROCK. PAY STREAK ABOUT A MILE LONG, 20-50 FEET WIDE, AND ABOUT 15 FT. THICK (ALL OF GRAVEL); GRAVEL OVERLAIN BY ABOUT 25 FEET OF FROZEN MUCK. THE PAY STREAK LIES ABOUT 100 FEET NW OF AND PARALLEL TO THE CREEK. ONLY A LITTLE CASSITERITE IN GRAVELS.
Comment (Deposit): STREAM GRADIENT APPROXIMATELY 50 FEET PER MILE IN AREA MINED. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
References
Reference (Deposit): USGS MF-405 (B-5), LOC. 24.
Reference (Deposit): USGS BULL 864-C, P. 153-154.
Reference (Deposit): USGS OF 77-168 D, P. 87, LOC. 35.
Reference (Deposit): USGS OF 81-170, P. 53-54.
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.
