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Forest Rose

Past Producer in Granite county in Montana, United States with commodities Lead, Silver, Zinc, Copper, Gold
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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. Land status
  16. Production statistics
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10069761
MRDS ID W007436
Record type Site
Current site name Forest Rose
Related records 10245542

Geographic coordinates

Geographic coordinates: -113.08591, 46.516 (WGS84)
Elevation 1634
Relative position 11.2 KM SSW OF HASKELL.

Site location context

Political divisions (FIPS codes)

Granite(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dunkleberg Creek(quadrangle 1:24,000 scale)

Missoula East(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Clark Fork(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(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 Granite

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 009N 012W 22 SW OF SE Montana

Comments on the location information

  • ON STEEP SLOPE W OF DUNKLEBERG CREEK. ; INFO FROM LAND.ST :(1958)

Commodities

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

Materials information

Materials Type of material
Anglesite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Sphalerite Ore
Limonite Gangue
Pyrite Gangue
Quartz Gangue

Analytical data

Result 0.5-3.9% ZN, 0.5-3.1% PB, 0.88-2.06 OZ/TON AG, TRACE AU.

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Colorado Formation;Kootenai Formation
    Rock description Colorado Formation;Kootenai Formation
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -113.08591, 46.516
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Dunkleberg Anticline
Type of structure Local
Structure description Royal Stock

Ore body information

  • General form IRREGULAR
    Strike NE
    Dip 45NW
    Width 0.3M

Controls for ore emplacement

  • Faulting Near Nose Of Anticline Reported By Popoff To Be Controlling Structure In Ore Deposition. Faults Produced Zones Of Brecciated Metamorphosed & Mineralized Rock.

Comments on the geologic information

  • SOME MINERALIZATION ALONG LONGITUDINAL FISSURE ZONES CONTAIN VEINLETS OF QUARTZ.THE ANTICLINE HAS A NORTHWARD TREND AND PLUNGE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1884
Discoverer Frank Carnes

Mining district

District name Dunkleberg District

Land status

Ownership category National Forest

Production statistics

  • Year 1947
    Period 1912-1947
    Material AG
    Description Cp_Grade: ^3 Oz/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 85g/mt
  • Year 1947
    Period 1912-1947
    Material AU
    Description Cp_Grade: ^4.0 %
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 4wt-pct
  • Year 1947
    Period 1912-1947
    Material ORE
    Description Cp_Grade: ^4.0 %
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 4wt-pct

Comments on the production information

  • PRODUCTION IS FOR FOREST ROSE - WASA GROUP.

Comments on the workings information

  • IN 1940 100-TON FLOATION MILL ERECTED NEAR FOREST ROSE MINE TO TREAT PB & ZN ORE.

Comments on development

  • BULLDOZER TRENCHING & DIAMOND DRILLING CONDUCTED BY U.S. BUR. MINES. FROM 1946 - 1949. 1948 U.S.M.B. COMPLETED TOPOGRAPHIC & GEOLOGIC MAPS OF AREA.

Reference information

Bibliographic references

  • Deposit

    USGS BULL 660, P. 247.

  • Deposit

    MBMG BULL 10, P. 20

  • Deposit

    USBM REPT INVES 5014, P. 14, 15, FIG. 3, 4B, 12.

  • Production

    USBM RI 5014; USGS BULL 660, P. 247.

General comments

Subject category Comment text
Deposit DEPOSIT IN LOWER PORTION OF UPPER GASTROPOD LIMESTONE BEDS. LARGEST ORE BODY FOUND ON NOSE OF ANTICLINE. SHAPE DETERMINED BY THOSE OF REPLACED BEDS. THE VEIN IN PART FOLLOWS THE BEDING PLANE AND IN PART CUTS ACROSS A BED OF LIMESTONE. MAIN ORE BODIES FOUND AT INTERSECTION OF FAULT ZONES WITH LST BEDS. BETWEEN 300-350 FT LEVEL OF MINE, MINERALIZATION DECREASES WITH DIMINISHED GRADE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1975 Mlynarczyk, Meg S. U.S. Geological Survey
Updater 01-OCT-1982 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.

External references

Maps centered on this site