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Joyce-Jenson Prospect

Occurrence in Alaska, United States with commodity Gold
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Geologic information

Identification information

Deposit ID 10001327
MRDS ID A012067
Record type Site
Current site name Joyce-Jenson Prospect
Alternate or previous names Yankee Boy, Maude S., Blue Jay
Related records 10185742

Geographic coordinates

Geographic coordinates: -134.8201, 58.60836 (WGS84)
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS BULL 502, PLATE 2, LOC. 11 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

Materials information

Materials Type of material
Gold Ore

Analytical data

Result UP TO 1/3 OZ/TON AU

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -134.8201, 58.60836
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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/Eagle River

Land status

Ownership category State

Comments on the workings information

  • JOYCE-JENSON: TWO TUNNELS, TOTAL 140 FT, DRIVEN BEFORE 1912; MAUDE S. : 80 FT TUNNEL IN 1907; BLUE JAY: 25 FT DRIFT IN 1907

Comments on development

  • SEVERAL CLAIMS; ACTIVE CIRCA 1907

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012067

Bibliographic references

  • Deposit

    USGS OFR 84-572, P. 165, NO. 55

  • Deposit

    USGS BULL 345, P. 89

  • Deposit

    USGS BULL 502, P. 51

  • Deposit

    USGS OFR 85-717, P. 129

  • Other Database

    BAG-OFR-85-717-116

General comments

Subject category Comment text
Deposit CLOSELY SPACED CLAIMS ON QUARTZ STRINGER LODES; JOYCE-JENSON: STRINGER LODE IN SLATE, 12 FT THICK, CONTAINS UP TO 12 PPM AU; MAUDE S.: 4.5 FT WIDE STRINGER LODE WITH VERTICAL EXTENT OF QT LEAST 50 FT, GRADES UP TO 11 PPM AU; BLUE JAY: QUARTZ STRINGER LODE, NO OTHER DATA
Deposit THE YANKEE BOY OR JOYCE-JENSON PROPERTY, MAUDE S. GROUP AND BLUE JAY CLAIMS ARE CLOSLY SPACED SITES ON QUARTZ STRINGER LODES OF THE SAME GENERAL CHARACTER; JOYCE-JENSON MAY BE EXTENSION OF COTTRELL-SPAULDING PROSPECT (E. PLURIBUS UNUM ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1985 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey