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Franklin Creek Placer

Past Producer in Alaska, United States with commodities Gold, Silver, Lead, 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 10002715
MRDS ID A015160
Record type Site
Current site name Franklin Creek Placer
Related records 10111907

Geographic coordinates

Geographic coordinates: -141.77491, 64.16365 (WGS84)
Relative position ABOUT 7.5 MILES NE 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-2(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

Fortymile River WSR(Wild and Scenic River)

Wild and Scenic River BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-393, LOC 55. COORDINATES GIVEN ARE FOR THE SMALL SETTLEMENT OF FRANKLIN MARKED ON EAGLE (A-2) AT THE MOUTH OF FRANKLIN CR. ALL MINING WITHIN 4 MI. OF MOUTH. 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
Silver Secondary
Lead Tertiary
Mercury Tertiary

Materials information

Materials Type of material
Gold Ore
Lead Ore
Silver Ore
Barite Gangue
Pyrite Gangue
Cinnabar Unknown
Galena Unknown

Analytical data

Result FINENESS AT LEAST 820 PARTS AU PER THOUSAND. SEE REF. 2, P. 183

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Rock unit name Birch Creek Schist
    Rock description Birch Creek Schist
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -141.77491, 64.16365
ListMap

Economic information

Ore body information

  • Length 6437.2M

Comments on the geologic information

  • BROAD VALLEY IN UPPER PART OF CREEK. LOWER SEVERAL MILES OF VALLEY IS NARROW, STEEP-WALLED, AND HAS THINNER GRAVEL THAN UPSTREAM. ; MAJOR.UNITS: BEDROCK IS MANY KINDS OF SCHIST AND SOME CRYSTALINE LIMESTONE CUT BY QUARTZ VEINS AND GRANITIC AND BASIC DIKES; GRANITE AT HEAD OF MAIN CREEK AND SOME TRIBUTARIES.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1886

Mining district

District name Fortymile

Land status

Ownership category State

Comments on development

  • GOLD DISCOVERED IN 1886 AND MINED UNTIL 1935 WHEN FLOOD WIPED OUT ALL MINING PLANTS AND FILLED CUTS WITH GRAVEL. MINING, SHOVELING IN TYPE WITH DAMS USED FOR GROUND SLUICING.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit GOLD MAINLY IN AND ON BEDROCK, SOME IN LOWEST 2 FT. OF GRAVEL. GRAVEL 2-12 FT. THICK. SOME GOLD FOUND WITH ADHERING PARTS OF VEIN QUARTZ. BEST PART OF PAY ABOUT 50 FT. WIDE. SMALL AMOUNTS OF CINNABAR AND NATIVE LEAD FOUND.
Deposit STREAM GRADIENT 140-170 FEET PER MILE IN LOWER 2.5 MILES OF CREEK. OLDEST PRODUCING CREEK IN DISTRICT ; 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.