Koby & Shepard Gold Prospect

Occurrence in Alaska, United States with commodities Gold, Lead, Zinc, Copper

Geologic information

Identification information

Deposit ID 10002344
MRDS ID A013261
Record type Site
Current site name Koby & Shepard Gold Prospect
Related records 10258487

Geographic coordinates

Geographic coordinates: -135.99592, 57.82915 (WGS84)
Elevation 30
Location accuracy 500(meters)
Relative position 1.2 MI. SE OF HEAD OF LISIANSKI INLET.
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-467, LOC. 23. 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
Lead Secondary
Zinc Secondary
Copper Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Schist > Greenschist
  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Greenschist

Nearby scientific data

(1) -135.99592, 57.82915

Ore body information

  • General form LENS
    Strike N 20-30 DEGREES W
    Dip 80 DEGREES-90 DEGREES E
    Thickness 2.13M
    Length 91.44M

Controls for ore emplacement

  • Fault Zone

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Chichagof

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Surface/Underground
    Length 85.34M

Comments on the workings information

  • 240 FT. ADIT WITH 180 FT. CROSSCUT DRIVEN NW ALONG FAULT ZONE. SEVERAL PROSPECT PITS AND TRENCHES DUG.

Comments on development

  • 11 CLAIMS STAKED IN AREA IN 1936, ACCORDING TO USBM OFR 20-73, LOC. 28.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013261

Bibliographic references

  • Deposit

    USGS MF-467, LOC. 23 (1972)

  • Deposit

    USGS B 1058-E, P. 208, 209 (1959)

  • Deposit

    USGS B 929, P. 141 (1941)

  • Deposit

    USGS OF 78-450, P. 66 (1978)

  • Deposit

    USBM OFR 20-73, LOC. 28 (1978)

  • Other Database

    BAG-MF-467-23

General comments

Subject category Comment text
Deposit LENTICULAR BODIES OF QUARTZ UP TO 7 FT. THICK IN FAULT ZONE IN CHLORITE-QUARTZ GREENSCHIST. QUARTZ CONTAINS 1% SULFIDES, INCLUDING ARSENOPYRITE, PYRITE, SPHALERITE, GALENA, CHALCOPYRITE, AND ALSO FREE GOLD.
Deposit NO DATA AVAILABLE ON EXPLORATION OR DEVELOPMENT HISTORY ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1987 Leonard, Kenneth R. (Huber, Donald F.) U.S. Geological Survey