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  3. Mineral Resource Data System (MRDS)

Bear, Lower Cripple Cr. 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. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10002570
MRDS ID A015005
Record type Site
Current site name Bear, Lower Cripple Cr. Placer
Related records 10160410

Geographic coordinates

Geographic coordinates: -156.14468, 63.57029 (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

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

Ophir NE(quadrangle 1:100,000 scale)

Ophir(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-367, LOC. 7. LOCATION AT CONFLUENCE OF BEAR AND CRIPPLE CREEKS, AND UPSTREAM FOR ABOUT 1 MILE ALONG CRIPPLE CREEK. 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

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert

Nearby scientific data

(1) JMct
ListMap

Economic information

Comments on the geologic information

  • MAJOR.UNITS: BEDROCK IS SERPENTINOUS GREENSTONE. ; REG.COM: SOURCE OF GOLD THOUGHT TO BE CRIPPLE CREEK MOUNTAINS TO THE SE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1912
Year of first production 1913
Year of last production 1965

Mining district

District name Innoko

Comments on development

  • OPEN CUT MINING WITH AID OF A SLACK-LINE SCRAPER

Reference information

Bibliographic references

  • Deposit

    USGS MF-367 (C-1), LOC. 7.

  • Deposit

    USGS BULL. 864-C, P. 170-172.

  • Deposit

    USGS CIRC. 255, P. 16-18.

  • Other Database

    BAG-MF-367-7

General comments

Subject category Comment text
Deposit GOLD FOUND IN LOWER 2.5 FEET OF GRAVEL AND ON BEDROCK. GRAVEL IS 5-6 FT THICK AND OVERLAIN BY 2-12 FT. OF MUCK.
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Deposit STREAM GRADIENT ABOUT 2.75%. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-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.