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  3. Mineral Resource Data System (MRDS)

Knowles 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. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10000831
MRDS ID A011484
Record type Site
Current site name Knowles Prospect
Alternate or previous names Knowles and Backman Property
Related records 10209730

Geographic coordinates

Geographic coordinates: -145.44532, 61.31406 (WGS84)
Location accuracy 2000(meters)
Relative position CLAIMS EXTEND OVER RIDGE BETWEEN MILL CR. AND GLACIER CR.

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Valdez B-4(quadrangle 1:63,360 scale)

Valdez SE(quadrangle 1:100,000 scale)

Valdez C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Copper River(hydrologic unit)

Copper River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • BEST LOCATION: USGS BULL 866, PLATE 1 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991). ; INFO FROM LAND.ST :49?

Commodities

Commodity Importance
Gold Primary
Lead Secondary

Materials information

Materials Type of material
Galena Ore
Gold Ore

Analytical data

Result NO DATA

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Rock unit name Valdez Group
    Rock description Valdez Group;Valdez Group

Nearby scientific data

(1) -145.44532, 61.31406
ListMap

Economic information

Ore body information

  • General form VEIN AND LENS

Controls for ore emplacement

  • Fracture Control

Comments on the geologic information

  • LARGE VEIN ON PROPERTY IS ROUGHLY PARALLEL TO A 2 FT WIDE DIORITE DIKE 85 FT TO THE E OF VEIN. SLATE AND GRAYWACKE INTRUDED BY DIORITE AND PORPHYRY DIKES.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Tonsina

Comments on the workings information

  • DEVELOPED BY OPEN CUTS ONLY

Comments on development

  • DISCOVERED IN 1923; ACTIVE BETWEEN ABOUT 1923 AND 1930

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit SEE ALSO: EAGLE ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit LENTICULAR QUARTZ VEINS IN JOINTS AND MASSES OF QUARTZ IN FAULTS AND JOINTS; RICHEST VEINS STRIKE N TO NE AND DIP STEEPLY E; LARGEST VEIN10 TO 14 IN WIDE WITH N 15 E STRIKE AND 85 E DIP; QUARTZ CARRIES FREE GOLD, PYRITE AND GALENA

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-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.