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Dexter Creek Placer

Past 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. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10100992
MRDS ID A012934
Record type Site
Current site name Dexter Creek Placer
Related records 10160170

Geographic coordinates

Geographic coordinates: -165.32383, 64.58068 (WGS84)

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nome C-1(quadrangle 1:63,360 scale)

Solomon NW(quadrangle 1:100,000 scale)

Nome(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Nome(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • UPSTREAM LIMIT OF DREDGE TAILINGS AS MAPPED ON USGS C1 TOPO MAP; CREEK WAS MINED FROM MOUTH TO HEADWATER TRIBS. 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

Analytical data

Result AU WORTH $18.60/OZ, PRICE OF AU = $20.67, USGS BULLETIN 263, P. 209.

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -165.32383, 64.58068
ListMap

Economic information

Comments on the geologic information

  • STREAM GRAVELS: MICA SCHIST, LIMESTONE AND QUARTZ PEBBLES MIXED WITH LARGE BOULDERS OF LIMESTONE; BENCH DEPOSIT 100 YD ABOVE GROUSE G. CONSISTED OF ABOUT 5 FT OF YELLOW CLAY OVER 15 FT OF POORLY SORTED SCHIST, LIMESTONE, GRANITE AND SANDY CLAY GRAVELS. ; MAJOR.UNITS: LIMESTONE AND SUBORDINATE MICA- AND CHLORITIC SCHIST ; REG.COM: HIGH BENCH GRAVELS

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1899
Year of first production 1900
Year of last production 1936

Comments on the production information

  • 1900 PRODUCTION FROM DEXTER CR. PLUS TRIBS: $300,000; PRICE OF AU = $20.67/FINE OZ, REF. 1.

Comments on the workings information

  • MUCH WATER LOST TO UNDERGROUND FLOW.

Comments on development

  • DRIFT MINING IN EARLY YEARS; HYDRAULIC MINING AFTER COMPLETION OF MIOCENE DITCH IN 1903; DREDGE OPERATED: 1918-1926.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit GRADIENT: 128 FT/MI ; 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 AU ON BLUE CLAY LAYER 5 FT BELOW SURFACE NEAR MOUTH OF CREEK; AU LIES ON BEDROCK AND IN BEDROCK CREVICES A FEW IN DEEP IN SCHIST, UP TO 20-30 FT DEEP WHERE BEDROCK IS LIMESTONE; STREAM GRAVELS: 3-10 FT DEEP; BENCH GRAVELS UP TO 30 FT DEEP; OLD CHANNEL 200 FT N OF CREEK ABOUT 1 MILE ABOVE MOUTH.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1987 Leonard, Kenneth R. (Huber, Donald 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.