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Poison Lake

Prospect in Okanogan county in Washington, United States with commodity Bromine
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Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.
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. Ore body information
  11. Economic information about the deposit and operations
  12. Links to other databases
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10097274
MRDS ID M056853
Record type Site
Current site name Poison Lake
Alternate or previous names Epso, Bitter Lake
Related records 10180143

Geographic coordinates

Geographic coordinates: -119.45339, 48.81873 (WGS84)
Elevation 524

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ellisforde(quadrangle 1:24,000 scale)

Oroville(quadrangle 1:100,000 scale)

Okanogan(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Okanogan(hydrologic unit)

Upper Columbia(hydrologic accounting unit)

Upper Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Washington Okanogan

Public Land Survey System information

Meridian Township Range Section Fraction State
038N 027E 05,04 Washington

Commodities

Commodity Importance
Bromine Primary

Comments on the commodity information

  • INTERMITTENT PRODUCTION 1928-1962

Materials information

Materials Type of material
Epsomite Ore
Clay Gangue

Analytical data

Result 80.5% MG SO4, 16.2% NA2 SO4, 1.4% K2 SO4

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)

Nearby scientific data

(1) -119.45339, 48.81873
ListMap

Economic information

Ore body information

  • General form LAKE BED
    Thickness 6.1M
    Length 91.44M
    Width 60.96M

Comments on the geologic information

  • GEOL.DESC: SALTS IN BRINE & WITHIN LAKE BED

Economic information about the deposit and operations

Development status Prospect
Commodity type Non-metallic
Significant No

Comments on the reserve resource information

  • 40,000 TONS EPSOMITE

Comments on development

  • ECON.COM: 552,000 TONS MIXED SALTS 1% NACL

Reference information

General comments

Subject category Comment text
Deposit 20 ACRES EXTENT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1975 Greene, Robert U.S. Geological Survey

Beyond USGS

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

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