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Ellamar Mine

Past Producer in Alaska, United States with commodities Copper, Gold, Silver, Zinc
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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. Ore body information
  10. Economic information about the deposit and operations
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10000490
MRDS ID A010674
Record type Site
Current site name Ellamar Mine
Alternate or previous names Gladhaugh Mine
Related records 10256117

Geographic coordinates

Geographic coordinates: -146.70254, 60.8982 (WGS84)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cordova D-8 NE(quadrangle 1:24,000 scale)

Cordova NW(quadrangle 1:100,000 scale)

Cordova(quadrangle 1:250,000 scale)

Federal lands

Chugach National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary
Zinc Critical Tertiary

Comments on the commodity information

  • GOLD IS IN TETRAHEDRITE AND SPHALERITE. SPHALERITE CARRIES AS MUCH AS 4.35 OZ/TON AU

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Sphalerite Ore
Tetrahedrite Ore
Calcite Gangue
Epidote Gangue
Graphite Gangue
Marcasite Gangue
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue

Analytical data

Result CHIP SAMPLE ASSAYED 5.4% CU, 0.10 OZ/TON AU

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Rock unit name Orca Group;Orca Group
    Rock description Orca Group;Orca Group

Nearby scientific data

(1) -146.70254, 60.8982
ListMap

Economic information

Ore body information

  • General form LENS
    Strike N35-45W
    Dip 30-80NE
    Plunge 45-75
    Plunge direction SE
    Length 91.44M
    Width 38.1M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1897
Year of first production 1901
Year of last production 1919

Comments on the production information

  • SIGNIFICANT UNKNOWN QUANTITIES OF AU AND AG PRODUCED AS WELL. MAY BE SUBSTANTIAL PRODUCTION AFTER 1931 (?)

Workings at the site

  • Type of workings Underground
    Length 1219.2M
    Overall depth 182.88M

Comments on the workings information

  • 8 LEVELS AND STOPES BETWEEN LEVELS. 4000 FT OF DRIFTS

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit STEEPLY PITCHING STRATABOUND LENTICULAR MASSIVE SULFIDE LENS IN GRAYWACKE AND SLATE. ASSOCIATED WITH PILLOW BASALTS AND DIABASE DIKE. HANGING WALL IS A BARREN LENS OF MASSIVE PYRITE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1984 Hirschmann, M. M. (Elliott, R. L.) U.S. Geological Survey
Editor 13-APR-1994 Mosier, Dan 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.