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  3. Mineral Resource Data System (MRDS)

Joyce-Jenson Prospect

Occurrence in Alaska, United States with commodity Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

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)

Site location context

Political divisions (FIPS codes)

Juneau(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Juneau C-3(quadrangle 1:63,360 scale)

Juneau NE(quadrangle 1:100,000 scale)

Juneau(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lynn Canal(hydrologic unit)

Northern 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

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) KJgn
ListMap

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

Bibliographic references

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

Beyond USGS

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

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.