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Mahoney

Past Producer in Alaska, United States with commodities Copper, Gold, Lead, Silver, Zinc
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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. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10161186
MRDS ID A012333
MAS/MILS ID 0021200024
Record type Site
Current site name Mahoney
Alternate or previous names Van 1-10
Related records 10001580

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -131.50867, 55.42754 (WGS84)
Elevation 20
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Ketchikan Gateway(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

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

Ketchikan SW(quadrangle 1:100,000 scale)

Ketchikan(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Ketchikan(hydrologic unit)

Southern 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

Public Land Survey System information

Meridian Township Range Section Fraction State
Copper River 074 S 091 E 25 NESWNE Alaska

Commodities

Commodity Importance
Copper Tertiary
Gold Tertiary
Lead Tertiary
Silver Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Calcite Unknown
Chalcopyrite Unknown
Galena Unknown
Mica Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown

Nearby scientific data

Main Entrance (1) -131.50867, 55.42754
ListMap

Economic information

Ore body information

  • Strike N80E
    Dip 50N
    Thickness 20M
    Length 100M
    Width 1M
    Area 84HA
    Depth to top 20M
    Field Value
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 FISSURE VEIN
    Shape of Orebody #2 IRREGULAR
    Type of Orebody #3 BRECCIA FILL
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control BEDDING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 PYRITIZATION
    Strike And Dip N80E:50N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 5
    Min. Thick. Unconsol. Mat. 1
    Total Surface Area (HA) 84
    Date of Last Modification 830321

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1900
Year of first production 1947

Mining district

District name Ketchikan District

Mineral rights holdings

Type of mineral rights Fee Ownership

Land status

Ownership category Private

Ownership information

  • Type Unknown
    Owner Van And Des Moore

Production statistics

  • Year 1947
    Description Zn-Pb Concentrate; Mill Feed 4-10% Zn 50000 Pounds Concentrate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Conc. Zinc Zinc 22679.61mt 7wt-pct

Workings at the site

  • Type of workings Underground
    Length 121M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method GOPHERING (COYOTING) 10-29
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Avg. Length of Adits (m) 96
    Number of Adits 1
    1st Condition of Workings UNKNOWN
    Capacity 10
    Capacity Units MT ORE/DAY
    Unit Production Cost 40.21
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 1
    Year of Information 1975

Reference information

Bibliographic references

  • Deposit

    BM YEARBOOK 1947b p. 1286

  • Ownership

    ALASKA KARDEX 120-006

  • Deposit

    P1 pp. 63-64

  • Deposit

    B347 pp. 150-151

  • Deposit

    B592e pp. 88-90

  • Deposit

    C252 p. 6

  • Deposit

    OF81-122

  • Deposit

    MTA 82 No. F-70

General comments

Subject category Comment text
Deposit ORE BODY DISCONTINUOUS AND OF VARIABLE ORIENTATION MAKING IT DIFFICULT TO FOLLOW UNDERGROUND. PROPERTY ORIGINALLY KNOWN AS ASHE GROUP. PAST PROD. LISTED AT APPROXIMATELY 1000 ST. NO GRADE GIVEN. RESERVES TAKEN FROM USGS BUL. 998-C, P.82. MINE ACQUISITION: $750. EXPLORATION: $900. DEVELOPMENT: $9000. MINE EQUIPMENT: $44,845 MINE WORKING CAPITAL: $5385. MILL CAPITAL EQUIPMENT: $46,875. MILL WORKING CAPITAL: $4688. MNLZN CONTROLLED BY FAULTS, ALTHOUGH OF MS NATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 26-JAN-1993 Kmm U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

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.