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  3. Mineral Resource Data System (MRDS)

Mitchell and Mcpherson Prospect

Occurrence in Alaska, United States with commodities Gold, Lead
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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. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10001329
MRDS ID A012069
Record type Site
Current site name Mitchell and Mcpherson Prospect
Related records 10161115

Geographic coordinates

Geographic coordinates: -134.7287, 58.54781 (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

  • BEST LOCATION: USGS BULL 502, PLATE 2, LOC. 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 Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore

Analytical data

Result GRADES OVER 6 FT SAMPLE WIDTH RANGED 8-17 PPM
Result UPPER TUNNEL GRADES 1-4 PPM AU
Result USGS OFR 85-717, P. 143

Host and associated rocks

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

Nearby scientific data

(1) -134.7287, 58.54781
ListMap

Economic information

Ore body information

  • Strike N 45 E
    Dip 90

Comments on the geologic information

  • COUNTRY ROCK IS BELT OF DIORITE GNEISS IN A SCHIST TERRANE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1904

Mining district

District name Juneau/Eagle River

Land status

Ownership category National Forest

Comments on the workings information

  • EXPLORED BY 2 TUNNELS AND OPEN CUTS; 3 UNPATENTED LODE CLAIMS

Comments on development

  • ACTIVE 1904-1914

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit MINERALIZED SHEAR ZONE IN DIORITE GNEISS; BRECCIA ZONE 6 FT THICK TRENDS ACROSS FOLIATION IN GNEISS AND CARRYS QUARTZ WITH RARE PYRITE AND GALENA; AURIFEROUS
Deposit SEE ALSO: ST. LOUIS ; 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
Editor 14-APR-1994 Mosier, Dan 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.