Two Percent Mine

Past Producer in Granite county in Montana, United States with commodities Silver, Zinc, Lead, Manganese, Copper, Gold
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. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10071360
MRDS ID W014700
Record type Site
Current site name Two Percent Mine
Related records 10245984

Geographic coordinates

Geographic coordinates: -113.27259, 46.33878 (WGS84)
Elevation 1829
Relative position ABOUT 2 KM NORTHEAST OF PHILIPSBURG

Site location context

Political divisions (FIPS codes)

Granite(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Philipsburg(quadrangle 1:24,000 scale)

Philipsburg(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Flint-Rock(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Montana Granite

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 007N 013W 19,30 Montana

Comments on the location information

  • 0.5 MI SE OF THE HOPE DISCOVERY INCLINE ON SLOPE OF POORMAN HILL.

Commodities

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

Materials information

Materials Type of material
Galena Ore
Gold Ore
Psilomelane Ore
Pyrolusite Gangue
Quartz Gangue
Rhodochrosite Gangue

Analytical data

Result BREAST OF INCLINE ORE CARRIES 20-3002/TON AG AND A L1TTLE AU.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Philipsburg Batholith
    Rock description Philipsburg Batholith
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Devonian
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Devonian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Jefferson Limestone
    Rock description Jefferson Lst

Nearby scientific data

(1) -113.27259, 46.33878

Economic information

Geologic structures

Type of structure Regional
Structure description Philipsburg Batholith
Type of structure Local
Structure description Philipsburg Anticline, Philipsburg Overthrust

Ore body information

  • General form TABULAR, LENTICULAR, PODS
    Strike N 80 E
    Dip 78 S

Controls for ore emplacement

  • Shear Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1865
Year of first production 1866

Mining district

District name Philipsburg (Granite-Flint Creek) District

Ownership information

  • Type Operator
    Owner Taylor - Knapp Co.
  • Type Owner
    Owner Patten Mining Co.

Comments on the production information

  • PRE-RAILROAD PRODUCTION SHIPPED TO SWANSEA, ENGLAND. TOTAL PRODUCTION UP TO 1906 WAS $75000.

Comments on the reserve resource information

  • EXCELLENT POTENTIAL FOR ADDITIONAL ORE WHERE TWO PERCENT VEIN CUTS (1) THE BASE OF THE HASMARK FM. AND (2) THE MIDDLE OF THE SILVER HILL FM. A 2000 FT SHAFT WOULD BE NEEDED TO REACH THE SILVER HILL FM.

Workings at the site

  • Type of workings Underground
    Length 1300M
    Overall depth 180M

Comments on the workings information

  • MINE DEVELOPED BY TWO INCLINED SHAFTS WITH NINE LEVELS OF DRIFTS AND CROSSCUTS.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit DEPOSIT FOLLOW THE BEDDING PLANES WHICH STRIKE N 34 W AND DIP 6-15 E. THE BEDS WHERE MINERALIZED ARE JOINED BY A VEIN WHICH STRIKE N 80 E AND DIPS 78 S. THE ORE BEARING SOLUTIONS PRESUMABLY CIRCULATING IN THE FISSURE WERE IN MEASURE CONTROLLED BY THE HANGING-WALL SHALE AND DEPOSITED MUCH OF THE LOAD BELOW IT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1976 Krohn, Douglas H. U.S. Geological Survey
Updater 01-NOV-1980 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.