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  3. Mineral Resource Data System (MRDS)

Snow Bird

Prospect in Alaska, United States with commodities Silver, Copper
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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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10001031
MRDS ID A011708
Record type Site
Current site name Snow Bird
Related records 10186042

Geographic coordinates

Geographic coordinates: -142.51553, 61.39468 (WGS84)
Relative position 2,900 ft north-northeast of the headwaters of Boulder Creek - a tributary of Dan Creek. Best location: MacKevett, 1974. Accurate within radius of 100 feet.

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

McCarthy B-5(quadrangle 1:63,360 scale)

McCarthy SW(quadrangle 1:100,000 scale)

McCarthy C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Chitina River(hydrologic unit)

Copper River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Copper Primary

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Calcite Gangue
Pyrite Gangue
Quartz Gangue

Mineral occurrence model information

Model code 87
USGS model code 23
Deposit model name Basaltic Cu (BC name is Volcanic redbed Cu)
Mark3 model number 118

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Nikolai Greenstone
    Rock description Nikolai Greenstone
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -142.51553, 61.39468
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Quartz-calcite vein 0.5-1.5 m thick containing bornite, chalcocite, chalcopyrite and pyrite, in Triassic Nikolai Greenstone.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Nizina

Comments on the workings information

  • Workings / Exploration = Explored by two short adits. Sample of bornite-rich pod assayed: 50 ppm Ag (MacKevett and Smith, 1968).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Moffit, 1918; MacKevett and Smith, 1968

General comments

Subject category Comment text
Deposit Model Name = Basaltic Cu

Reporter information

Type Date Name Affiliation Comment
Reporter 12-NOV-1997 Leonard, K.R. U.S. Geological Survey
Reporter 12-NOV-1997 Elliott, R.L. U.S. Geological Survey
Reporter 12-NOV-1997 Richter, D.H. 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.