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  3. Mineral Resource Data System (MRDS)

Walker Fork Placer

Producer in Alaska, United States with commodity Gold
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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. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10107543
MRDS ID A015172
Record type Site
Current site name Walker Fork Placer
Related records 10160652

Geographic coordinates

Geographic coordinates: -141.10821, 64.06783 (WGS84)
Relative position 19 TO 26 MILES EAST OF CHICKEN.

Site location context

Political divisions (FIPS codes)

Southeast Fairbanks(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Eagle A-1(quadrangle 1:63,360 scale)

Eagle SE(quadrangle 1:100,000 scale)

Eagle(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-393, LOC. 75, 76. TWELVEMILE CR. TO CONFLUENCE WITH DAVIS AND POKER CREEKS. COORDINATES GIVEN ARE FOR CABINS AT MOST HEAVILY MINED AREA NEAR HEAD. 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

Comments on the commodity information

  • SOME OF GOLD, PARTICULARLY AT THE UPPER END OF PAYSTREAK, WAS RUSTY OR EVEN BLACK IN COLOR.

Materials information

Materials Type of material
Gold Ore
Garnet Gangue
Ilmenite Gangue
Limonite Gangue
Magnetite Gangue
Psilomelane Gangue
Pyrite Gangue

Analytical data

Result FINENESS SAID TO BE 830 AU DOWNSTREAM AND 890 AU UPSTREAM. SEE REF. 2, P. 162.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel

Nearby scientific data

(1) MDag
ListMap

Economic information

Ore body information

  • Width 213.36M

Comments on the geologic information

  • VALLEY BROAD, WITH PERSISTANT TERRACES 400 FT. ABOVE STREAM. ; MAJOR.UNITS: BEDROCK IS QUARTZ-MICA SCHIST, QUARTZITE SCHIST, AND CARBONACEOUS SCHIST CUT BY QUARTZ VEINS WHICH FOLLOW CLEAVAGE. SCHISTS COMPLEXLY FOLDED. ; REG.COM: SOURCE OF GOLD THOUGHT TO BE BURRIED GRANITIC PLUTON RADIATING DIKES AND QUARTZ VEINS INTO COUNTRY ROCK SCHISTS.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1889
Year of first production 1903

Mining district

District name Fortymile

Land status

Ownership category State

Ownership information

  • Type Operator
    Owner Gold And Minerals Co. Inc., Dragline, Dozer
    Home office 1522 K St. N.W., Washington, D.C. 20005
    First year 1975

Comments on development

  • HIGH GRADE GRAVELS WORKED OUT EARLY; DREDGES OPERATED 1907-09, 1908-12, 1934-37. GROUND FROZEN; IS SLUICED OFF AND MELTS NATURALLY AHEAD OF DREDGE. STREAM SHOVEL USED 1925-34. MINED ALSO BY OPEN CUT HYDRAULIC METHODS. MINED IN 1975 BY DRAGLINE AND BULLDOZER.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit GOLD IN LOWER 2 FEET OF GRAVEL, ON BEDROCK, AND IN CREVICES UP TO 3 FEET DEEP IN BEDROCK. GRAVEL COMMONLY 4-10 FEET THICK, BENEATH A THIN LAYER OF MUCK.
Deposit STREAM GRADIENT ABOUT 100 FEET PER MILE. LOCATION DESCRIPTION REPRESENTS ALL PLACER DEPOSITS ALONG WALKER FORK FROM TWELVEMILE CR. TO CONFLUENCE WITH POKER AND DAVIS CREEKS. ; 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-APR-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.