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  3. Mineral Resource Data System (MRDS)

Tomboy

Past Producer in Alaska, United States with commodities Gold, Lead
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10258606
MRDS ID A010557
MAS/MILS ID 0020950235
Record type Site
Current site name Tomboy
Alternate or previous names Tomboy Ledge, Westburg & Demenzet, Pigot Bay No. 1-6
Related records 10000395

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -148.37429, 60.87705 (WGS84)
Elevation 609
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Seward D-4(quadrangle 1:63,360 scale)

Seward NE(quadrangle 1:100,000 scale)

Seward C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Eastern Prince William Sound(hydrologic unit)

Prince William Sound(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

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

Public Land Survey System information

Meridian Township Range Section Fraction State
Seward 009 N 006 E 15 NWNENW Alaska

Commodities

Commodity Importance
Gold Primary
Lead Tertiary

Materials information

Materials Type of material
Arsenopyrite Unknown
Chalcopyrite Unknown
Galena Unknown
Gold Unknown
Pyrite Unknown

Nearby scientific data

Main Entrance (1) -148.37429, 60.87705
ListMap

Economic information

Ore body information

  • Strike N35E
    Dip 65W
    Width 2.7M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 TABULAR
    Type of Orebody #3 DISSEMINATED
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control FOLDING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N35E:65W
    Date of Last Modification 880427

Economic information about the deposit and operations

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

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner I. Westburg And J. Domenzet
    Interest 100
    Home office Alaska
    Year 1912
  • Type Owner
    Owner C. F. Davis
    Interest 100
    Home office Alaska
    Year 1979

Production statistics

  • Year 1984
    Description Total Reported Production 9 Oz. Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 279.93g
  • Year 1984
    Description Total Reported Production 219 Oz. Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 219mt

Reserves and resources

  • Type In-situ
    Estimate year 1984
    Inferred 330mt ore
    Total resources 330mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 8.4699 g/mt Gold Major 1984
    Silver Ag 1.69 g/mt Silver 1984

Comments on the workings information

  • Workings consist of a 12.2 m.-long adit with a 6.1 m. winze, a 10.7 m.-long adit, a trench, stripping, and a 32 m.-long crosscut with 12.2 m. of drifting.

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 18-MAY-1988 Mpm U.S. Bureau of Mines

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.