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Brownlee Manganese Prospect

Occurrence in Washington county in Idaho, United States with commodity Manganese
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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. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10070083
MRDS ID W012762
Record type Site
Current site name Brownlee Manganese Prospect

Geographic coordinates

Geographic coordinates: -116.8652, 44.78927 (WGS84)
Elevation 1524
Relative position LOCATED ABOUT 3 MILES EAST OF THE MOUTH OF BROWNLEE CREEK AND DAM, 15 MI. S.W. OF HORNET RANGER STATION

Site location context

Political divisions (FIPS codes)

Washington(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cuddy Mountain(quadrangle 1:24,000 scale)

McCall(quadrangle 1:100,000 scale)

Baker City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Brownlee Reservoir(hydrologic unit)

Middle Snake-Powder(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Payette 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 Idaho Washington

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 016N 004W 32 Idaho

Comments on the location information

  • LOCATED ON SOUTH SIDE OF CUDDY MOUNTAIN.

Commodities

Commodity Importance
Manganese Critical Tertiary

Comments on the commodity information

  • NOT ENOUGH TONNAGE TO MAKE A MINE.

Materials information

Materials Type of material
Pyrolusite Ore
Quartz Gangue

Alteration

  • (Local) Sericitic

Analytical data

Result 25% MN, WITH SILICA THE MAIN IMPURITY

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
    Rock unit name Lucile Series-Shale, Sericitic Phyllites, Limestone
    Rock description Lucile Series-Shale, Sericitic Phyllites, Limestone
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -116.8652, 44.78927
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Brecciation

Ore body information

  • General form LENTICULAR, DISCONTINUOUS
    Thickness 1.52M
    Length 6.1M

Controls for ore emplacement

  • Fractures, Brecciation

Comments on the geologic information

  • PHYLLITE IS A METAMORPHOSED CALCAREOUS SHALE. PHYLLITES DIP WEST.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1953

Mining district

District name Unorganized District, Cambridge Area

Land status

Ownership category National Forest
Area name Payette National Forest

Workings at the site

  • Type of workings Surface
    Overall length 6.1M

Comments on the workings information

  • A BULLDOZER CUT OF 20 FEET IS THE EXTENT OF WORK DONE.

Reference information

Bibliographic references

  • Deposit

    COOK, E. F., 1954, MINING GEOLOGY OF THE SEVEN DEVILS REGION: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 97, 22 P

  • Deposit

    1954 COMPILE IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 9

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1976 Benjamin, David A.; Miller, Pat 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