1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Unnamed (southwest slope of Rusty Hill)

Occurrence in Alaska, United States with commodities Copper, Silver, Gold
Map
XML
JSON
KML
C
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10307607
Record type Site
Current site name Unnamed (southwest slope of Rusty Hill)

Geographic coordinates

Geographic coordinates: -147.43297, 63.20453 (WGS84)
Relative position This occurrence is at an elevation of about 4,100 feet on the southwest slope of Rusty Hill, about 2.25 miles north northeast of Denali. The map site is just inside the south boundary of sec. 6, T. 20 S., R. 1 E., of the Fairbanks Meridian. This location is accurate to about 250 feet.

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healy A-1(quadrangle 1:63,360 scale)

Mount Hayes SW(quadrangle 1:100,000 scale)

Healy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Susitna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Pyrite Ore
Pyrrhotite Ore
Quartz Gangue

Alteration

  • (Local) Hydrothermal alteration has been described as pyritization and quartz veining.

Nearby scientific data

(1) Kgu
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rock at this occurrence is spotted phyllite (Smith, 1981). The deposit consists of hydrothermally altered pyritized phyllite(?), cut along fractures by numerous quartz-sulfide veins as much as a foot thick (Ross, 1933). The sulfide minerals are pyrite, pyrrhotite, and chalcopyrite that carry trace amounts of gold and silver. The prospect has been known since the mid-1930's, and displays a distinct color anomaly.
  • Age = Hornblende has been K/Ar-dated by Smith (1981) at 64.1 Ma.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Valdez Creek

Comments on the workings information

  • Workings / Exploration = Surface sampling only.

Reference information

Comments on the references

  • Primary Reference = Smith, 1981

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-00 D.L. Stevens Stevens Exploration Management Corporation

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.