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Broken Neck 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. Geologic structures
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10002690
MRDS ID A015131
Record type Site
Current site name Broken Neck Creek Placer
Related records 10281583

Geographic coordinates

Geographic coordinates: -141.72554, 64.93311 (WGS84)
Relative position 18 MILES NW OF EAGLE

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 D-2(quadrangle 1:63,360 scale)

Eagle NE(quadrangle 1:100,000 scale)

Eagle(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-393, LOC. 28. COORDINATES GIVEN ARE FOR CENTRAL POINT OF PLACER THAT BEGINS AT MOUTH OF CREEK AND CONTINUES UPSTREAM FOR ABOUT .5 MILE. 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 FINENESS OF 4 ASSAYS AVERAGED 829 PARTS AU AND 165 PARTS AG. SEE REF. 2, P, 196.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) Qs
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Tintina Fault

Ore body information

  • Width 15.24M

Comments on the geologic information

  • CONGLOMERATE BLUFFS AT MOUTH OF CREEK. SEVENTYMILE RIVER FOLLOWS TRACE OF TINTINA FAULT IN EAGLE (D-2). ; MAJOR.UNITS: BEDROCK IS TERTIARY SEDIMENTARY ROCKS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1925
Year of last production 1940

Mining district

District name Eagle

Comments on development

  • INTERMITTANT MINING FROM EARLY 1900'S UNTIL 1940. ALL WORK IN 1930'S ON BENCH ALONG WEST SIDE OF CREEK; RIM ABOUT 20 FT. ABOVE CREEK. ANOTHER BENCH IS ABOUT 10 FT. HIGHER. GRAVEL ON LOWER BENCH THICKENS FROM 8 FT. AT RIM TO 30 FT. OR MORE.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit GOLD IN BENCH AND STREAM GRAVEL NEAR BASE AND ON BEDROCK, SOME FINE GOLD IN HIGHER LEVELS OF GRAVEL. OVERBURDEN 3-30 FT. THICK.
Deposit STREAM GRADIENT ABOUT 100 FEET PER MILE. ; 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.