1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Crooked Creek Placer

Past Producer in Alaska, United States with commodities Gold, Tin
Map
XML
JSON
KML
C
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Land status
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10003015
MRDS ID A015529
Record type Site
Current site name Crooked Creek Placer

Geographic coordinates

Geographic coordinates: -155.37809, 64.45644 (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 B-5(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. 7. STRIP MINE MARKED ON RUBY (B-5) JUST NORTH OF CROOKED CR. ON WEST BENCH OF BIRCH CR. PLACER GROUND ALSO ALONG CROOKED CR. NEAR 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
Tin Critical Tertiary

Materials information

Materials Type of material
Cassiterite Ore
Gold Ore

Nearby scientific data

(1) -155.37809, 64.45644
ListMap

Economic information

Comments on the geologic information

  • MAJOR.UNITS: BEDROCK IS GRANITE AND SCHIST.

Economic information about the deposit and operations

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

Mining district

District name Ruby

Land status

Ownership category State

Comments on the workings information

  • SHAFTS SUNK APPROXIMATELY 50 FT. TO BEDROCK FOR DRIFT MINING.

Comments on development

  • EXPLORED BY SHAFTS SUNK ON LOW TERRACE SOUTH OF CREEK. MINING CHIEFLY IN LOWEST PART OF CREEK JUST ABOVE BIRCH CREEK. DRIFT MINING REPORTED.

Reference information

Bibliographic references

  • Deposit

    USGS MF-405 (B-5), LOC. 7

  • Deposit

    USGS OF 239, P. 42-43.

  • Deposit

    USGS OF 77-168 D, P. 85, LOC. 14

  • Deposit

    USGS BULL 864-C, P. 157-158

General comments

Subject category Comment text
Deposit A LITTLE GOLD FOUND IN A SMALL PAYSTREAK NEAR MOUTH; SEVERAL FEET OF GRAVEL WITH CLAYEY LAYERS BENEATH 40-50 FT. OF MUCK. DEPOSITS OF CROOKED CR. MERGE WITH THOSE OF BIRCH CR.; AS THE DEPOSITS OF BIRCH CR. CONTAIN CASSITERITE, IT IS ASSUMED THAT AT LEAST SOME OF THE MATERIAL MINED ON CROOKED CR. ALSO CARRIED CASSITERITE. DIFFICULT TO DISTINGUISH DEPOSITS ON THE LOWER PART OF VALLEY FROM THOSE OF BIRCH CREEK.
Deposit STREAM GRADIENT APPROXIMATELY 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-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.