Keystone Claims

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

Geologic information

Identification information

Deposit ID 10001279
MRDS ID A012008
Record type Site
Current site name Keystone Claims

Geographic coordinates

Geographic coordinates: -134.49369, 58.47975 (WGS84)
Location accuracy 2000(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • APPROXIMATED FROM USGS OFR 85-717, NO. J150 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Copper Primary
Lead Primary
Zinc Primary

Materials information

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

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -134.49369, 58.47975

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Juneau

Land status

Ownership category National Forest

Comments on the workings information

  • 3 PATENTED PLACER CLAIMS ON LEMON CR. NEAR THIS PROSPECT

Comments on development

  • CLAIMS, 1880-1982

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012008

Bibliographic references

  • Deposit

    USGS OFR 85-717, P. 163

  • Other Database

    BAG-OFR-85-717-150

General comments

Subject category Comment text
Deposit TWO 8-12 IN QUARTZ VEINS CONTAIN PYRRHOTITE, GALENA, SPHALERITE AND CHALCOPYRITE
Deposit SEE ALSO: LEMON CREEK PLACER, CLARK PROSPECT ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1986 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey