1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Alder

Occurrence in Okanogan county in Washington, United States with commodities Gold, Silver, Copper, Zinc
Map
XML
JSON
KML
B
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. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10055964
MRDS ID SP00185
Record type Site
Current site name Alder

Geographic coordinates

Geographic coordinates: -120.15924, 48.32177 (WGS84)

Site location context

Political divisions (FIPS codes)

Okanogan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Twisp West(quadrangle 1:24,000 scale)

Twisp(quadrangle 1:100,000 scale)

Concrete(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Methow(hydrologic unit)

Upper Columbia(hydrologic accounting unit)

Upper Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Okanogan-Wenatchee 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 Washington Okanogan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 033N 021E 25,26,35,36 Washington

Comments on the location information

  • ELEVATION 3600 FEET.

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary
Zinc Critical Primary

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Copper Ore
Galena Ore
Gold Ore
Malachite Ore
Sphalerite Ore
Pyrrhotite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -120.15924, 48.32177
ListMap

Economic information

Controls for ore emplacement

  • Sulfied Deposits In The Alder Mine Are Concordant With Bedding In The Host Rocks And Are Strata-Bound; Hydrothermal Alteration At The Mine Is Also Strata-Bound. Sulfide Minerals, Including Pyrite, Sphalerite, Chalcopyrite, And Galena Are Found In Veins. The Veins Are Generally Small, Have No Relation To The Alder Stock That Intrudes Volcanic Rocks Near The Mine, And Have Random Orientation.

Comments on the geologic information

  • DACITE BRECCIAS OF THE JURASSIC - CRETACEOUS NEWBY GROUP ARE HOST TO VOLCANOGENIC MASSIVE SULFIDE MINERALIZATION AT THE ALDER MINE. THE NEWBY GROUP WAS INTRUDED BY THE ALDER CREEK STOCK, WHICH HAS BEEN DATED AT 137 +/- 3.4 M.Y. (BURNET, 1976, BUNNING, 1990).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Twisp

Comments on the production information

  • PRODUCTION INCLUDES 6831 TONS SHIPPED IN 1939 THAT AVERAGED 0.55 OZ/TON AU, ABOUT 0.50 OZ/TON AG, AND 0.16% TO 0.55% CU (HUNTTING, 1956). APPROXIMATELY 9000 TONS OF ORE WERE SHIPPED IN 1940 AND 4000 TONS OF ORE IN 1942; 1899 TONS OF CONCENTRATE WERE SHIPPED IN 1950 (BURNET, 1976). IN 1951, 1546 TONS OF COPPER CONCENTRATE YIELDED 268,202 LB OF COPPER, AND 2072 OZ AU. SHIPMENTS WERE ALSO MADE IN 1952-1953 (HUNTTING, 1956, P. 135).

Reference information

Bibliographic references

  • Deposit

    BARKSDALE, J.D., 1948, STRATIGRAPHY IN THE METHOW QUADRANGLE, WASHINGTON: NORTHWEST SCIENCE, V. 22, NO. 4, P. 164-176

  • Deposit

    BUNNING, B.B., COMPILER, 1990, GEOLOGIC MAP OF THE EAST HALF OF THE TWISP 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-9, 51 P., 1 PL.

  • Deposit

    BURNET, F.W., 1976, FELSIC VOLCANIC ROCKS AND MINERAL DEPOSITS IN THE BUCK MOUNTAIN FORMATION ANDESITES, OKANOGAN COUNTY, WASHINGTON: UNIVERSITY OF WASHINGTON MASTER OF SCIENCE THESIS, 26 P., 1 PL.

  • Deposit

    HUNTTING, M. T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P.; V. 2, 67 P.

  • Deposit

    MCFARLAND, C.R., MCLUCAS, G.B., RIGBY, J.G., STOFFEL, K.L., 1979, DIRECTORY OF WASHINGTON MINING OPERATIONS, 1979: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES INFORMATION CIRCULAR 69, 100 P.

  • Deposit

    PURDY, C.P., JR., 1952, DIRECTORY OF WASHINGTON MINING OPERATIONS, 1952: WASHINGTON DIVISION OF MINES AND GEOLOGY INFORMATION CIRCULAR 20, 75 P.

General comments

Subject category Comment text
Deposit THE DEPOSIT WAS DEVELOPED BY THREE ADITS THAT TOTAL SEVERAL HUNDRED FEET AND A LARGE OPEN-PIT MINE. A 300-TON/DAY FLOTATION MILL WAS BUILT AT THE SITE (HUNTTING, 1956).

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1991 Berger, Mary A. U.S. Geological Survey
Updater 01-MAY-1993 Frank, Dave 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