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  3. Mineral Resource Data System (MRDS)

Helena Mine

Past Producer in Lewis and Clark county in Montana, United States with commodities Silver, Lead, Gold, Zinc
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10015900
MRDS ID DB02182
Record type Site
Current site name Helena Mine

Geographic coordinates

Geographic coordinates: -112.12505, 46.62684 (WGS84)
Relative position 1.5 KM NW OF VA CENTER.

Site location context

Political divisions (FIPS codes)

Lewis and Clark(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Austin(quadrangle 1:24,000 scale)

Elliston(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Missouri(hydrologic unit)

Upper Missouri(hydrologic accounting unit)

Missouri-Marias(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Montana Lewis and Clark

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 010N 004W 16 Montana

Comments on the location information

  • 1.4 KM E OF STEMWINDER HILL.

Commodities

Commodity Importance
Silver Primary
Lead Primary
Gold Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Galena Ore
Gold Ore

Analytical data

Result 0.29 OZ/TON AU, 14.34 OZ/TON AG, 13-14% PB
Result UNOXIDIZED ORE: 25-35% MORE, AU AND AU STAYED THE SAME, 2-3% ZN.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Scratchgravel Quartz Monzonite Stock
    Rock description Scratchgravel Quartz Monzonite Stock
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Empire Shale
    Rock description Empire Shale

Nearby scientific data

(1) Gravel
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith
Type of structure Local
Structure description Scratchgravel Quartz Monzonite Stock

Ore body information

  • Strike N 20 W
    Dip STEEPLY EAST

Controls for ore emplacement

  • Near Igneous Intrusive Contact

Comments on the geologic information

  • SAME VEIN AS THROUGH ROCK ROSE AND LOOBY MINE. HELENA IS IN THE MIDDLE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Scratchgravel Hills District

Ownership information

  • Type Operator
    Owner E. J. Stevens
    Home office 1459 Cannon St., Helena, Mt.
  • Type Owner
    Owner Paul Smith
    Home office 26 W. Sixth Ave., Helena, Mt.

Workings at the site

  • Type of workings Underground
    Length 609.6M
    Overall depth 137.46M

Comments on the workings information

  • SHAFT, DRIFTS

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1980 Elliott, James E. U.S. Geological Survey
Updater 01-NOV-1981 Wise, Kristine K. (Elliott, James E.) 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