The Mountain Beaver is a copper mine located in Okanogan county, Washington at an elevation of 5,098 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
Elevation: 5,098 Feet (1,554 Meters)
Commodity: Copper
Lat, Long: 48.79083, -120.31917
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.
Mountain Beaver MRDS details
Site Name
Primary: Mountain Beaver
Secondary: Mount Beaver
Commodity
Primary: Copper
Secondary: Silver
Secondary: Gold
Tertiary: Bismuth
Location
State: Washington
County: Okanogan
District: Billy Goat Mountain Area
Land Status
Land ownership: National Wilderness
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 Pasayten Wilderness Area In Okanogan National Forest
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Year: 1934
Material type: ORE
Description: Ap_Grade: ^4.1% Cu, 2.08 Oz/Ton Au, 1.9 Oz/Ton Ag
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Northern Cascade Mountains
Mineral Deposit Model
Model Name: Porphyry Cu-Au
Orebody
Form: STOCKWORK, DISSEMINATED
Structure
Type: L
Description: Steeply Dipping Northwest-Trending Faults And Fractures. Eight Mile Creek Fault
Alterations
Alteration Type: L
Alteration Text: Widespread Hydrothermal Alteration
Rocks
Not available
Analytical Data
Analytical Data: CRUDE ORE SHIPPED AVERAGE: 1.53 OZ/TON AU, 1.13 OZ/TON AG, 1.81% CU, MINOR BI. ANOTHER SHIPMENT (1934) YIELDED 4.1% CU, 2.08 OZ/TON AU, 1.9 OZ/TON AG
Materials
Ore: Chalcocite
Ore: Pyrite
Ore: Gold
Ore: Bornite
Ore: Chalcopyrite
Gangue: Quartz
Comments
Comment (Location): UNSURVEYED. ON ISABELLA RIDGE ADJACENT TO BILLY GOAT CLAIMS. STAATZ AND OTHERS CONSIDERED MOUNTAIN BEAVER CLAIMS TO BE PART OF BILLY GOAT CLAIMS
Comment (Deposit): SEE ALSO MRDS RECORD D000669
Comment (Commodity): BI HAS BEEN REPORTED FROM PROPERTY
Comment (Production): ANOTHER SMALL SHIPMENT CONTAINED 1.81% CU, 1.53 OZ/TON AU, AND 1.13 OZ/TON AG
Comment (Deposit): MINERALIZED AGGLOMERATE. QUARTZ VEINLETS ARE AS WIDE AS 2 IN.
Comment (Workings): 4 ADITS
Comment (Geology): ANDESITIC HOST ROCKS ARE PART OF AN ISLAND ARC. HOLLISTER INDICATES THAT THIS IS A CU-MO PORPHYRY
References
Reference (Deposit): STAATZ, M.H., WEIS, P.L., TABOR, R.W., ROBERTSON, J.F., VAN NOY, R.M., PATTEE, E.C., AND HOLT, D.C., 1971, MINERAL RESOURCES OF THE PASAYTEN WILDERNESS AREA, WASHINGTON: U.S. GEOLOGICAL SURVEY BULLETIN 1325, P. 114.
Reference (Deposit): GRANT, A.R., 1976, REPORT OF EVALUATION, MINERAL RESOURCE ANALYSIS STUDY ON UNITED STATES FOREST SERVICE LAND, STATE OF WASHINGTON: PREPARED FOR U.S. FOREST SERVICE - REGION 6, CONTRACT NO. 004724N, P. 32.
Reference (Deposit): HOLLISTER, V.F., 1979, PROPHYRY COPPER-TYPE DEPOSITS OF THE CASCADE VOLCANIC ARC, WASHINGTON: MINERALS SCIENCE AND ENGINEERING, V. 11, P. 34.
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. 144.
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. 238.
Washington Gold
"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: Where to Find Gold in Washington.
