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Upper Ridge Mine

Past Producer in Alaska, United States with commodity Antimony
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Geologic information

Identification information

Deposit ID 10000643
MRDS ID A011259
Record type Site
Current site name Upper Ridge Mine
Alternate or previous names Ridge Top
Related records 10282685

Geographic coordinates

Geographic coordinates: -150.41151, 63.75236 (WGS84)
Location accuracy 500(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Antimony Primary

Comments on the commodity information

  • POTENTIAL LOW GRADE SB PRODUCER; HIGH GRADE ORE MINED OUT

Materials information

Materials Type of material
Stibnite Ore
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Birch Creek
    Rock description Birch Creek
    Stratigraphic age (youngest) Early Cambrian

Nearby scientific data

(1) -150.41151, 63.75236
ListMap

Ore body information

  • General form VEIN SWARM
    Thickness 15.24M

Comments on the geologic information

  • SWARM OF VEINS IN 30 TO 50 FT ZONE CUTS BIRCH CREEK TERRANE

Economic information

Economic information about the deposit and operations

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

Mining district

District name Kantishna

Land status

Ownership category National Park

Comments on the production information

  • PRODUCTION IS GIVEN AS "SEVERAL HUNDRED TONS" OF HIGH GRADE ORE, ADGGS OFR 98, P. 39

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011259

Bibliographic references

  • Deposit

    USGS OFR 77-169 A, P. 46 LOC. 28

  • Deposit

    ADGGS OFR 98, P. 39 LOC. 67

  • Deposit

    USBM OFR 24-78, FIG. 4.1-A(2) LOC. C

General comments

Subject category Comment text
Deposit SWARM OF QUARTZ STIBNITE VEINS 30 TO 50 FT WIDE
Deposit SEE ALSO: STAMPEDE ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1984 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey