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Florence No. 1 Mine

Producer in Alaska, United States with commodities Gold, Silver, Copper, Nickel, Cobalt
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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. Geologic structures
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10022646
MRDS ID FS00036
Record type Site
Current site name Florence No. 1 Mine
Alternate or previous names Admirality - Alaska Claims

Geographic coordinates

Geographic coordinates: -134.85202, 58.24974 (WGS84)
Elevation 457
Relative position 11.5 MI. FROM JUNEAU AIRPORT, EAST OF FUNTERBAY ON MANSFIELD PENINSULA.

Site location context

Political divisions (FIPS codes)

Hoonah-Angoon(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Juneau A-3(quadrangle 1:63,360 scale)

Juneau SE(quadrangle 1:100,000 scale)

Juneau(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Admiralty Island(hydrologic unit)

Central Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Tongass 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

Comments on the location information

  • ONE OF 20 CONTIGUOUS LODE CLAIMS LISTED UNDER MINERAL SURVEY NO. 1494. 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
Silver Tertiary
Copper Tertiary
Nickel Critical Tertiary
Cobalt Critical Tertiary

Comments on the commodity information

  • ASSAYS SHOW THAT FLORENCE NO. 1 IS ONLY VALID DISCOVERY IN GROUP OF 20.

Materials information

Materials Type of material
Chalcopyrite Ore
Copper Ore
Gold Ore
Pentlandite Ore
Quartz Ore
Silver Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Early Cretaceous
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite

Nearby scientific data

(1) -134.85202, 58.24974
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Mt. Robert Barron
Type of structure Local
Structure description Anticline

Ore body information

  • General form FLAT

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1923
Discoverer Admiralty - Alaska Gold Mining Co.

Mining district

District name Harris, 1st Jud.

Land status

Ownership category National Forest
Area name Tongass

Ownership information

  • Type Owner
    Owner Admiralty - Alaska Gold Mining Co.

Comments on development

  • WORK PERFORMED DISCLOSED THAT FLORENCE NO. 1 WAS ONLY VALID DISCOVERY OF 20 CONTIGUOUS CLAIMS.

Reference information

Bibliographic references

  • Deposit

    U.S. BUREAU OF MINES, REPORT OF INVESTIGATIONS 3950, EXPLORATION OF A NICKEL COPPER COBALT DEPOSIT AT FUNTER BAY, ADMIRALTY ISLAND, ALASKA.

  • Deposit

    USGS BULLETIN, 783 - B

  • Deposit

    USGS MAP AND GEOLOGY, CQ100, GEOLOGY OF THE JUNEAU (B - 3) QUADRANGLE, ALASKA.

  • Deposit

    1963 DIREXPL DMEA

  • Deposit

    1963 OTHER FS, VALIDATED DISCOVERY

  • Deposit

    FOREST SERVICE MINERAL EXAMINATION 10 - SR - 12 (3) BY HOWARD BANTA, MARCH 1963.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1975 Sierk, Betty M. 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.