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Cascade Prospect

Occurrence in Alaska, United States with commodities Gold, Lead, Zinc
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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. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10001328
MRDS ID A012068
Record type Site
Current site name Cascade Prospect
Alternate or previous names Julia Group

Geographic coordinates

Geographic coordinates: -134.79482, 58.58169 (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

  • SEE: USGS BULL 502, PLATE 2, LOC. 8 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 Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Sphalerite Ore
Pyrite Gangue
Quartz Gangue

Analytical data

Result AVERAGE 0.58 OZ/TON AU OVER 5 FT WIDTH, USGS OFR 84-572, P. 166, NO. 57

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Schist
    Rock unit name Coast Range Intrusive Complex
    Rock description Coast Range Intrusive Complex
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -134.79482, 58.58169
ListMap

Economic information

Comments on the geologic information

  • COUNTRY ROCK IS GRAPHITIC SLATE AND SCHIST ABOUT 1 MI E OF CONTACT WITH COAST RANGE INTRUSIVE COMPLEX

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

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 27.43M

Comments on the workings information

  • 2 PROSPECT SHAFTS AND OPEN CUTS, INCLUDING 90-FT INCLINED SHAFT

Comments on development

  • ACTIVE IN THE EARLY 1900'S

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit 6 FT WIDE QUARTZ STRINGER LODES IN SLATE NEXT TO AUGITE-PORPHYTIC BASALT FOOTWALL CARRYS ARSENOPYRITE, PYRITE, GALENA AND SPHALERITE; PYRITE DISSEMINATED IN SLATE ALSO.
Deposit SEE ALSO: DIVIDEND ; 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.