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Mccaskey Bar Placer

Past Producer in Alaska, United States with commodities Gold, Mercury
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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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  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 10002764
MRDS ID A015222
Record type Site
Current site name Mccaskey Bar Placer
Related records 10111592

Geographic coordinates

Geographic coordinates: -150.19055, 65.16684 (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-1(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. 42. DEPOSIT AT END OF SPUR BETWEEN PIONEER AND KENTUCKY CREEKS. COORDINATES GIVEN FOR APPROXIMATE CENTER OF PLACER GROUND. 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
Mercury Tertiary

Materials information

Materials Type of material
Magnetite Gangue
Picotite Gangue
Tourmaline Gangue
Zircon Gangue
Cinnabar Unknown
Gold Unknown

Analytical data

Result ONE ASSAY INDICATED FINENESS OF 802 3/4 PARTS AU AND 191 PARTS AG. SEE REF. 2, P. 199.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel

Nearby scientific data

(1) -150.19055, 65.16684
ListMap

Economic information

Ore body information

  • Width 30.48M

Comments on the geologic information

  • PLACER 250 FT. ABOVE LEVEL OF PRESENT STREAM. GRAVEL ERODED FROM RIDGE OF QUARTZITE THAT FOLLOWS THE SE SIDE OF PIONEER CREEK. ; MAJOR.UNITS: BEDROCK IS ALTERED PHYLLITE AND ARGILLITE CUT BY QUARTZ VEINS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1924

Mining district

District name Hot Springs

Land status

Ownership category State

Comments on the workings information

  • OVERBURDEN FROZEN

Comments on development

  • MINING, 1924-39 AND PROBABLY SINCE WW II. A LARGE HYDRAULIC PLANT OPERATED IN 1931.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit LOW GRADE PLACER AT LEAST 100 FT WIDE IN BENCH GRAVELS. MOST OF GOLD FOUND WITHIN A FOOT OF BEDROCK, BUT A LITTLE FOUND THROUGHOUT THE GRAVEL. OVERBURDEN 15-18 FT. THICK.
Deposit STREAM GRADIENT ABOUT 100 FT. PER MILE. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
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-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.