Rich Hill Mine

Past Producer in Alaska, United States with commodities Copper, Iron, Molybdenum
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. Production statistics
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10000105
MRDS ID A010129
Record type Site
Current site name Rich Hill Mine
Alternate or previous names Ouray Prospect
Related records 10210141

Geographic coordinates

Geographic coordinates: -132.3393, 55.51917 (WGS84)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Craig C-2 SE(quadrangle 1:24,000 scale)

Craig NE(quadrangle 1:100,000 scale)

Craig(quadrangle 1:250,000 scale)

Federal lands

Kavilco, Incorporated(ANCSA Village)

ANCSA Village UND(Type of land area)

UND(Federal land areas administered by UND)

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

Commodities

Commodity Importance
Copper Primary
Iron Tertiary
Molybdenum Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Molybdenite Ore
Epidote Gangue
Garnet Gangue
Pyrite Gangue

Analytical data

Result HEADS HAD 1.4%-2.0% CU
Result BALANCE IS 1% CU
Result MAGNETITE BODIES ARE 50% FE

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -132.3393, 55.51917

Economic information

Ore body information

  • Strike N77E
    Dip 80NE
    Thickness 10.67M
    Length 30.48M
    Width 24.38M

Controls for ore emplacement

  • Ore Bodies Are In Contact Zones Between Dikes And Counyry Rocks

Comments on the geologic information

  • SOME DIKES CUT ORE BODY AND ARE UP TO 50 FEET THICK

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1917
Year of last production 1928

Production statistics

  • Year 1918
    Period 1917-1918
    Material ORE
    Ore mined 145mt
    Accuracy Accurate

Workings at the site

  • Type of workings Surface/Underground
    Length 243.84M

Comments on the workings information

  • IN ADDITION TO UNDERGROUND WORKINGS, THERE IS ALSO A GLORY HOLE

Reference information

Comments on the other database information

  • RECORD NUMBER W062471 IS A POTENTIAL DUPLICATE OF THIS RECORD

Bibliographic references

General comments

Subject category Comment text
Deposit LARGEST BODY IS CHALCOPYRITE, WITH LITTLE PYRITE, MOLYBDENITE
Deposit RICHEST ORE HAS BEEN MINED ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1983 Hirschmann, M. M. (Elliott, R. L.) U.S. Geological Survey

Beyond USGS

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

External references

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.