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Flat Creek Placer

Past Producer in Alaska, United States with commodities Gold, Silver, Tin
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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. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10003025
MRDS ID A015542
Record type Site
Current site name Flat Creek Placer
Related records 10232748

Geographic coordinates

Geographic coordinates: -155.57805, 64.05781 (WGS84)

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 A-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. 34. MINE AND TAILINGS MARKED ON RUBY (A-6); TRIBUTARY OF TIMBER CREEK. UPPERMOST WORKINGS 1/4 MI. FROM HEAD, PLACERS EXTEND DOWNSTREAM FOR APPROXIMATELY 1.5 MILES. 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
Tin Critical Tertiary

Comments on the commodity information

  • GROUND RAN $.50-$4 PER FT.2 (GOLD AT $20.67) OF BEDROCK.

Materials information

Materials Type of material
Gold Ore
Magnetite Gangue
Pyrite Gangue
Cassiterite Unknown

Analytical data

Result FINENESS OF THREE ASSAYS OF GOLD AVERAGED 786 PARTS AU AND 207 PARTS AG.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel

Nearby scientific data

(1) -155.57805, 64.05781
ListMap

Economic information

Comments on the geologic information

  • THOUGHT TO BE ON THE EAST EDGE OF A MINERALIZED BELT. ; MAJOR.UNITS: BEDROCK IS PHYLLITE. ; REG.COM: LODE SOURCE OF GOLD AND CASSITERITE THOUGHT TO BE NEARBY.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1913
Year of first production 1913

Mining district

District name Ruby

Land status

Ownership category State

Comments on the workings information

  • SEVERAL SHAFTS SUNK TO BEDROCK FOR DRIFT MINING.

Comments on development

  • CREEK STAKED IN WINTER OF 1913-14. TWO MINES OPERATED IN WINTER OF 1913-14 AND ONE IN THE SUMMER OF 1914. MINING FROM 1913 THROUGH AT LEAST 1936. MINED BY DRIFTING AND SLUICING.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit STREAM GRADIENT APPROXIMATELY 100 FEET PER MILE IN LOWER MILE OF CREEK; ABRUPT STEEPENING IN HEADWATER SECTION. CREEK OFTEN CONFUSED WITH ANOTHER FLAT CREEK, WHICH IS A TRIBUTARY OF LONG CR. IN RUBY B-6. ; 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.
Deposit Discovery Year: 1913-1914
Deposit GOLD ON OR IN UPPER 6 IN. OF BEDROCK OR ON CLAY FALSE BEDROCK A SHORT DISTANCE ABOVE THE TRUE BEDROCK. GOLD IN NARROW, IRREGULAR PATCHES AND STREAKS OVER A WIDTH OF AS MUCH AS 1,000 FT. ONE SHAFT SHOWED A DEPTH OF 55 FT. TO BEDROCK, OF WHICH THE UPPER 37 FEET WAS MUCK AND THE LOWER 18 FEET GRAVEL; ALLUVIUM SOLIDLY FROZEN. ELSEWHERE, 2-30 FT. OF GRAVEL BENEATH 40-50 FEET OF MUCK. FURTHEST DOWNSTREAM PLACERS CONTAIN RUSTY AND OXIDIZED GRAVEL; THOUGHT TO REPRESENT AN OLD CHANNEL OF TIMBER CREEK.

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.