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  3. Mineral Resource Data System (MRDS)

Swift Creek 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. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10003017
MRDS ID A015532
Record type Site
Current site name Swift Creek Placer
Related records 10209090

Geographic coordinates

Geographic coordinates: -155.61698, 64.42727 (WGS84)
Location accuracy 250(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

Ruby B-6(quadrangle 1:63,360 scale)

Ruby S(quadrangle 1:100,000 scale)

Ruby(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-405, LOC. 10. MINING IN HEADWATER SECTION OF SWIFT CREEK, A TRIBUTARY OF BASIN CREEK. 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

Materials information

Materials Type of material
Gold Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -155.61698, 64.42727
ListMap

Economic information

Comments on the geologic information

  • CREEK APPARENTLY DRAINS CONTACT ZONE BETWEEN SCHIST AND GREENSTONE. ; MAJOR.UNITS: WHERE MINED BEDROCK IS GREENSTONE AND ARGILLITE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Ruby

Land status

Ownership category State

Ownership information

  • Type Operator
    Owner Harold C. Tilleson
    Home office General Delivery, Ruby, Ak. 99768
    First year 1975
  • Type Owner
    Owner Swift Creek Mining Co.

Comments on the workings information

  • WORK IN 1915 CONSISTED OF SLUICING OFF 10-12 FT. OF MUCK AND THEN MINING 6-8 FT. OF GRAVEL.

Comments on development

  • MINING "FOR SOME YEARS" REPORTED BEFORE 1933. MINING REPORTED, 1915-16 AND 1933. OPEN-CUT MINING NEAR HEAD; DRIFT MINING FURTHER DOWNSTREAM. MINED IN 1975 BY FRONT END LOADER AND BULLDOZER.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit GOLD NEAR AND IN TOP OF BEDROCK; SOME GOLD COARSE. PAY STREAK IS IN CREEK BOTTOM, IS ABOUT 10 FT. WIDE, AND IS SAID TO RUN $.25-$.30 PER FT.2 OF BEDROCK (GOLD AT $20.67). NEAR HEAD GRAVEL 5-9 FT. THICK (NO MUCK MENTIONED); FURTHER DOWNSTREAM GROUND IS 16-20 FT. DEEP, INCLUDING 6-8 FT. OF GRAVEL.
Deposit STREAM GRADIENT APPROXIMATELY 250 FEET PER MILE IN HEADWATER MILE OF CREEK. ; 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-JUL-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.