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Cache Creek Placer

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

Geologic information

Identification information

Deposit ID 10002753
MRDS ID A015207
Record type Site
Current site name Cache Creek Placer
Related records 10184970

Geographic coordinates

Geographic coordinates: -150.81973, 65.09905 (WGS84)
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tanana A-2(quadrangle 1:63,360 scale)

Tanana SE(quadrangle 1:100,000 scale)

Tanana(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-371, LOC. 33. DEPOSIT ALONG HEADWATER SECTION OF CACHE CREEK NEAR CONFLUENCE WITH FERGUSON DRAW. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Gold Primary
Tin Critical Primary
Silver Secondary
Chromium Critical Tertiary
Rhenium Tertiary

Materials information

Materials Type of material
Cassiterite Ore
Chromite Ore
Barite Gangue
Ilmenite Gangue
Magnetite Gangue
Picotite Gangue
Gold Unknown

Alteration

  • (Local) Cache Cr. Gravels Contain Oxidized Cobbles Of Serpentinized Gabbroic Rock.

Analytical data

Result SAMPLING OF A TAILING PILE INDICATED RECOVERABLE CONTENT PER CUBIC YD. OF 4.27 LB. CONCENTRATE, 2.26 LB. SN AND .025 OZ. AU.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -150.81973, 65.09905
ListMap

Economic information

Comments on the geologic information

  • UNDERLYING PALEOZOIC ROCKS IN THIS VICINITY ARE COVERED ONLY BY A THIN VENEER OF JUR-CRET ROCKS, THROUGH WHICH IN PLACES THE STREAM HAS PENETRATED. ; MAJOR.UNITS: BEDROCK IS JURASSIC-CRETACEOUS PHYLLITE, SLATE, GRAYWACKE, QUARTZITE, AND SANDSTONE CUT BY BARREN QUARTZ VEINS. BEDROCK SURFACE WEATHERED AND BRECCIATED.

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

Mining district

District name Hot Springs

Land status

Ownership category State

Comments on the workings information

  • ENTIRE DEPOSIT FROZEN.

Comments on development

  • GOLD DISCOVERED IN 1908-09. MAIN PAY STREAK IN UPPER VALLEY ESSENTIALLY MINED OUT BY 1913. LATER MINING DOWNSTREAM UNTIL 1940 OR 1941. MINING BY HYDRAULIC METHODS.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Deposit GOLD AT BASE OF GRAVEL AND IN CREVICES IN TOP FOOT OR MORE OF BEDROCK. GRAVEL ABOUT 10 FT. THICK, OVERLAIN BY 10-170 FT. OF MUCK AND SILT. VERY RICH PLACERS IN PLACES
Deposit STREAM GRADIENT ABOUT 75 FT. PER MILE. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit Discovery Year: 1908-09

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1987 Powers, M.T. (Huber, D.F.) U.S. Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative Alaska resources

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