Alder Mine

The Alder Mine is a gold, copper, and zinc mine located in Okanogan county, Washington at an elevation of 3,599 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: Alder Mine  

State:  Washington

County:  Okanogan

Elevation: 3,599 Feet (1,097 Meters)

Primary Mineral: Gold, Copper, Zinc

Lat, Long: 48.32222, -120.15806

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Alder Mine

Alder Mine MRDS details

Site Name

Primary: Alder Mine


Commodity

Primary: Gold
Primary: Copper
Primary: Zinc
Secondary: Silver


Location

State: Washington
County: Okanogan
District: Twisp District


Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: In Okanogan National Forest


Holdings

Not available


Workings

Type: Surface


Ownership

Owner Name: Ecm Inc.
Years: 1990 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1939
Discovery Year: 1896
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: M


Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Northern Cascade Mountains


Mineral Deposit Model

Model Name: Massive sulfide, kuroko


Orebody

Form: TABULAR


Structure

Type: R
Description: There Is A North-South Regional Structural Trend

Type: L
Description: South Fault Cuts Off Ore Zone.


Alterations

Alteration Type: L
Alteration Text: Silicification, Chloritization, Sericitization


Rocks

Not available


Analytical Data

Analytical Data: 0.106 OZ/TON AU, 0.59 OZ/TON AG, 0.33% CU, 1.78% ZN


Materials

Ore: Copper
Ore: Pyrrhotite
Ore: Chalcopyrite
Ore: Chalcocite
Ore: Malachite
Ore: Gold
Ore: Galena
Ore: Pyrite
Ore: Sphalerite


Comments

Comment (Commodity): AU AND AG ARE ENRICHED 2 OZ/TON IN CU CONCENTRATES MADE IN MILL TESTS.

Comment (Development): EXPLORATION IN 1977, 1979, AND 1990. COMPLEX LOW-GRADE ORE MUST BE CONCENTRATED BEFORE SOLD.

Comment (Deposit): AT DEPTH ARE MASSVIE STRINGERS OF CHALCOPYRITE AND SPHALERITE

Comment (Workings): OPEN PIT 500 FT LONG, 75 FT WIDE, 150 FT DEEP WITH 4 LEVELS BELOW PIT. 3 ADITS

Comment (Geology): VEINS IN DEPOSIT HAVE NO RELATION WITH THE ALDER CREEK STOCK


References

Reference (Deposit): BUNNING, B.B., 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, SCALE 1:100,000.

Reference (Deposit): WASHINGTON DIVISION OF MINES AND GEOLOGY INFORMATION CIRCULAR 63, P. 8

Reference (Deposit): WASHINGTON DIVISION OF MINES AND GEOLOGY INFORMATION CIRCULAR 69, P. 9.

Reference (Deposit): DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 163.

Reference (Deposit): GRANT, A.R., 1976, REPORT OF EVALUATION, MINERAL RESOURCE ANALYSIS STUDY ON UNITED STATES FOREST SERVICE LAND, STATE OF WASHINGTON: UNPUB REPORT PREPARED FOR U.S. FOREST SERVICE - REGION 6, CONTRACT NO. 004724N, P. 25-26.

Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37,V. 1, P. 135.

Reference (Deposit): JOSEPH, N.L., 1991, WASHINGTON'S MINERAL INDUSTRY - 1990: WASHINGTON GEOLOGY, V. 19, NO. 1, P. 3-24.

Reference (Production): GRANT, 1976


Washington Gold

Where to Find Gold in Washington

"Where to Find Gold in Washington" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more at Where to Find Gold in Washington.