Otter Creek

Past Producer in Alaska, United States with commodities Gold, Silver, Mercury, Antimony, Chromium, Tungsten, Tin, Lead
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10002635
MRDS ID A015073
Record type Site
Current site name Otter Creek

Geographic coordinates

Geographic coordinates: -157.93571, 62.45023 (WGS84)
Relative position SEE LOCATION COMMENTS

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Iditarod B-4(quadrangle 1:63,360 scale)

Iditarod SW(quadrangle 1:100,000 scale)

Iditarod C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

BLM(Federal land areas administered by BLM)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-363, LOC. 31. FLAT EAST TO SLATE CREEK.; DISCOVERY CLAIM 3 MILES EAST OF FLAT.; ACCURATE.

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Mercury Tertiary
Antimony Critical Tertiary
Chromium Critical Tertiary
Tungsten Critical Tertiary
Tin Critical Tertiary
Lead Tertiary

Materials information

Materials Type of material
Gold Ore
Garnet Gangue
Ilmenite Gangue
Magnetite Gangue
Pyrite Gangue
Cassiterite Unknown
Chromite Unknown
Cinnabar Unknown
Galena Unknown
Scheelite Unknown
Stibnite Unknown

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Monzonite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt

Nearby scientific data

(1) -157.93571, 62.45023

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1908
Year of first production 1909
Year of last production 1966

Comments on exploration

  • Status = Active

Mining district

District name Iditarod

Comments on the production information

  • PRODUCTION 1915-86 ESTIMATED AT 235,721 OZ. AU AND 31,408 OZ. AG. DREDGE OPERATED 1915-56.

Comments on the workings information

  • SURFACE: DREDGING

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit 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.
Deposit STREAM GRADIENT UNDER 100 FT. PER MILE. GLEN GULCH PLACERS INCLUDED WITH OTTER CREEK.
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1987 Powers, M.T. (Huber, D.F.) U.S. Geological Survey ARDF AND MRDS MERGED RECORD
Updater 01-MAY-1994 Powers, M.T. (Huber, D.F.) U.S. Geological Survey
Editor 06-MAR-1998 Mason, George U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.