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Helena Mine

Past Producer in Adams county in Idaho, United States with commodities Copper, Gold, Silver, Molybdenum, Tungsten
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Mineral rights holdings
  17. Land status
  18. Ownership information
  19. Production statistics
  20. Workings at the site
  21. Links to other databases
  22. Bibliographic references
  23. General comments
  24. Reporter information

Geologic information

Identification information

Deposit ID 10070105
MRDS ID W012795
MAS/MILS ID 0160030007
Record type Site
Current site name Helena Mine

Geographic coordinates

Geographic coordinates: -116.6418, 45.12457 (WGS84)
Elevation 1768
Relative position 1 MI NW OF LANDORE; 6.25 MI NE OF CUPRUM

Site location context

Political divisions (FIPS codes)

Adams(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cuprum(quadrangle 1:24,000 scale)

Riggins(quadrangle 1:100,000 scale)

Grangeville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Brownlee Reservoir(hydrologic unit)

Middle Snake-Powder(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Payette National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Idaho Adams

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 021N 003W 25 SWNESE Idaho

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Primary
Molybdenum Tertiary
Tungsten Critical Tertiary

Materials information

Materials Type of material
Bornite Ore
Powellite Ore
Scheelite Ore
Albite Gangue
Epidote Gangue
Pyroxene Gangue
Quartz Gangue
Scapolite Gangue
Zoisite Gangue

Alteration

  • (Local) Oxidation, Sericitization

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Quartz Diorite;Seven Devils Volcanics-Greenstones
    Rock description Quartz Diorite;Seven Devils Volcanics-Greenstones
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Metamorphic Rock > Skarn (Tactite)
    Rock unit name Martin Bridge Limestone-Tactite, Limestone, Argillaceous Beds;Tactite
    Rock description Martin Bridge Limestone-Tactite, Limestone, Argillaceous Beds;Tactite

Nearby scientific data

(1) -116.6418, 45.12457
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Doubly Plunging Anticlinal Uplifts Separated By A Syncline.

Ore body information

  • General form IRREGULAR, TABULAR, POCKETS, BUNCHES

Controls for ore emplacement

  • Contact

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1887

Mining district

District name Seven Devils District

Mineral rights holdings

Type of mineral rights Located Claim
Type of mineral rights Patented

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner C. W. Jones

Production statistics

  • Year 1949
    Period 1934 - 1949
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^24 % Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Copper Copper 24wt-pct

Comments on the production information

  • Few Cars High Grade Ore Shipped In 1905 By C.W. Jones

Workings at the site

  • Type of workings Surface/Underground
    Length 91.44M

Comments on the workings information

  • 2 Tunnels: Lower One About 300 Ft. Long, Crosscuts, Several Drifts, And Some Surface Pits.

Comments on development

  • Mine Closed In 1949: No Further Ore In Sight.

Reference information

Bibliographic references

  • Geology

    Cannon, R.S. and Grimaldi, F.S, Lindgrenite and Cuprotungstite From the Seven Devils District, Idaho.
    (http://www.minsocam.org/ammin/AM38/AM38_903.pdf)

  • Deposit

    Cook, E. F., 1954, Mining Geology Of The Seven Devils Region: Idaho Bureau Of Mines And Geology Pamphlet 97, 22 P.

  • Deposit

    Livingston, D. C., And Laney, F. B., 1920, The Copper Deposits Of The Seven Devils And Adjacent Districts: Idaho Bureau Of Mines And Geology Bulletin 1, P. 75 - 76

  • Deposit

    1920 Compile Idaho Bureau Of Mines And Geology, Bulletin 1

  • Deposit

    1954 Geolmap Idaho Bureau Of Mines And Geol., Pamphlet 97

  • Production

    Cook, E. F., 1954, Idaho Bureau Of Mines And Geol., Pamphlet 97, 22 P. Livingston, D.C., And Laney, F.B., 1920, Idaho Bur Mines And Geology Bulletin 1, P. 75.

General comments

Subject category Comment text
Deposit Discovery Year: LATE 1880'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1975 Benjamin, David A.; Miller, Pat U.S. Geological Survey
Reporter 16-MAY-1995 Winters, Dick U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site