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Sylvia Mine

Past Producer in Beaverhead county in Montana, United States with commodities Silver, Gold, Lead, Zinc, Copper
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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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10019183
MRDS ID DC08954
Record type Site
Current site name Sylvia Mine
Related records 10123877

Geographic coordinates

Geographic coordinates: -112.892, 45.30518 (WGS84)
Elevation 2117
Relative position 2 MILES NW OF ARGENTA

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ermont(quadrangle 1:24,000 scale)

Dillon(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Beaverhead(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Beaverhead-Deerlodge 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 Montana Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 006S 011W 13 SW OF SE Montana

Commodities

Commodity Importance
Silver Primary
Gold Primary
Lead Primary
Zinc Critical Primary
Copper Primary

Materials information

Materials Type of material
Galena Ore
Plumbojarosite Ore
Jasper Gangue
Limonite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Flathead
    Rock description Flathead
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

(1) -112.892, 45.30518
ListMap

Economic information

Ore body information

  • Strike N 05 E
    Dip 80 NW
    Width 0.36M

Controls for ore emplacement

  • Fissure Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1940
Discoverer Malcolm Fleming

Mining district

District name Argenta District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner G. Elder, G. Fleming, J. Collins
    First year 1972

Comments on the production information

  • PRODUCTION YEARS INCLUDE 1937, 1941-3, 1948-50, 1954, AND 1963-4.

Comments on the workings information

  • INCLINED SHAFT 90-FT DEEP AND A DRIFT 150-FT LONG RUNNING SOUTH FROM THE SHAFT. A 70-FT WINZE WAS SUNK ON THE VEIN FROM THE END OF THE DRIFT.

Comments on development

  • ONE UNPATENTED CLAIM

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 85, P. 62

  • Deposit

    1972 COMPILE M.B.M.G. BULL. 8

  • Production

    M.B.M.G. BULL. 85

General comments

Subject category Comment text
Deposit 4 TO 14 INCH VEIN CUTS FLAT-LYING QUARTZITE. OXIDIZED ORE WAS STOPED FROM 90-FT. LEVEL TO SURFACE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-JUL-1980 Loen, Jeffrey S. (Pearson, Robert C.) U.S. Geological Survey

Beyond USGS

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

External references

Maps centered on this site