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Yama Group

Past Producer in Jefferson 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. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Production statistics
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10019768
MRDS ID DC11435
Record type Site
Current site name Yama Group

Geographic coordinates

Geographic coordinates: -112.20782, 46.41573 (WGS84)
Location accuracy 500(meters)
Relative position 2 MI S OF FROHNER MINE.

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chessman Reservoir(quadrangle 1:24,000 scale)

Butte North(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)

Federal lands

Helena-Lewis and Clark 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 Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 008N 005W 27 Montana

Comments on the location information

  • N SLOPE OF LUMP GULCH. ; INFO FROM LAND.ST :(1950)

Commodities

Commodity Importance
Silver Primary
Lead Primary
Gold Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Sphalerite Ore
Quartz Gangue

Analytical data

Result 8% PB & 8% ZN

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Butte Quartz Monzonite (Boulder Batholith)
    Rock description Butte Quartz Monzonite (Boulder Batholith)
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) Granitic rock
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Ore body information

  • Strike N80E
    Dip 70-80 SE
    Length 457.2M
    Width 1.83M
    Depth to top 91.44M

Economic information about the deposit and operations

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

Mining district

District name Clancy-Lump Gulch District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Frank Yama
    Home office Clancy, Mt.

Production statistics

  • Year 1921
    Accuracy Accurate
    Description Ap_Grade: ^8% Pb, 8% Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Zinc Zinc 8wt-pct
    Major Ore Lead Lead 8wt-pct

Comments on the production information

  • HEAVY PENALTIES FOR CONTAINED ZINC DISCOURAGED FURTHER PRODUCTION.

Comments on the workings information

  • 3 ADITS RANGING IN LENGTH FROM 90-500 FT.

Comments on development

  • 4 PATENTED CLAIMS

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 16, P. 43-4.

  • Deposit

    USGS PP 428, PL. 1.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-AUG-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