The Otter Creek is a silver and 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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Otter Creek MRDS details
Site Name
Primary: Otter Creek
Commodity
Primary: Silver
Primary: Gold
Secondary: Tin
Secondary: Mercury
Secondary: Lead
Secondary: Tungsten
Secondary: Antimony
Secondary: Chromium
Location
State: Alaska
District: Iditarod
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Placer Au-PGE
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Cassiterite
Ore: Chromite
Ore: Cinnabar
Ore: Galena
Ore: Gold
Ore: Scheelite
Ore: Stibnite
Comments
Comment (Deposit): Other Comments = Stream gradient under 100 ft. per mile. Glen Gulch placers included with Otter Creek.
Comment (Geology): Age = Tertiary/Quaternary
Comment (Deposit): Model Name = Placer: stream, bench
Comment (Exploration): Status = Active
Comment (Reference): Primary Reference = Bundtzen and others, 1992
Comment (Geology): Geologic Description = Gold is deposited in both terrace and modern stream channels from Granite Creek about 5 miles to Flat. Most coarse gold is deposited on and in cracks in monzonite bedrock near discovery. Gold lowers in grade progressively downstream. Overburden is 10-18 ft. thick; 2-6 ft. of gravel overlain by 4-12 ft. of frozen muck. Top 2-6 ft of bedrock was taken up to recover gold in crevices.
Comment (Workings): Workings / Exploration = Surface: dredging
Comment (Production): Production Notes = Production 1915-86 estimated at 235,721 oz. Au and 31,408 oz. Ag. Dredge operated 1915-56.
References
Reference (Deposit): Bundtzen, T.K., Miller, M.L., Laird, G.M., and Bull, K.F., 1992, Geology and mineral resources of Iditarod mining district, Iditarod B-4 and eastern B-5 quadrangles, southwestern Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 97, 46 p., 2 sheets, scale 1:63,360.
Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction material) in the Iditarod and Ophir quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-576, 101 p.
Reference (Deposit): Mertie, J.B., Jr., 1936, Mineral deposits of the Ruby-Kuskokwim region, Alaska: U.S. Geological Survey Bulletin 864-C, 115-245.
Reference (Deposit): Maloney , R.P., 1962, Trenching and sampling of the Rhyolite mercury prospect, Kuskokwim River basin, Alaska: U.S. Bureau of Mines Report of Investigations 6141, 43 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Iditarod quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-363, 1 sheet, scale 1:250,000.
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