The Jumbo Mountain is a cobalt, nickel, and copper mine located in Snohomish county, Washington at an elevation of 3,399 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: 3,399 Feet (1,036 Meters)
Commodity: Cobalt, Nickel, Copper
Lat, Long: 48.19444, -121.58778
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.
Jumbo Mountain MRDS details
Site Name
Primary: Jumbo Mountain
Commodity
Primary: Cobalt
Primary: Nickel
Primary: Copper
Location
State: Washington
County: Snohomish
District: Darrington District
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 Boulder River Wilderness In Mount Baker National Forest
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
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
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Pyrrhotite
Ore: Chalcopyrite
Ore: Pentlandite
Comments
Comment (Reserve-Resource): RAW PROSPECT; NO RESERVES REPORTED
Comment (Deposit): MRDS RECORD US53007 HAS BEEN MERGED WITH THIS RECORD AND DELETED
Comment (Geology): GEOL.DESC: DUNITE AND GABBRO HAVE INTRUDED TERTIARY QUARTZITE AND ARGILLITE. THE DUNITE CARRIES NICKEL IN DISSEMINATED PYRRHOTITE AND IN OLIVINE. HIGHER CONCENTRATIONS OF PYRRHOTITE, PENTLANDITE AND (LATER) CHALCOPYRITE ARE IN SHEAR ZONES, IN ALTERED DUNITE, UP TO 30 FT. WIDE ALONG DUNITE-QUARTZITE CONTACTS. UP TO 3% NICKEL REPORTED. COBALT NOT MENTIONED BUT ESTIMATED(BY J.S.VHAY)TO BE PRESENT IN AMOUNTS AT ABOUT 1/20 TH OF THE NI& CU
Comment (Deposit): DESPITE THE FACT THAT THE MICKELIFEROUS SULFIDES OCCUR IN THE DUNITE DIKES BOTH AS DISSEMINATIONS AND AS CONCENTRATIONS ALONG SHEARED WALLS, MILLS(1960)FAVORED THE YOUNGER GABBRO BODY AS THE SOURCE OF THE MINERALIZING SOLUTION ; INFO.SRC : 1 PUB LIT
Comment (Location): UNSURVEYED
References
Reference (Deposit): MILLS, J.W., 1960, MINING ENGINEERING, V.12, NO. 3, MARCH, 1960, P. 272-274.
Reference (Reserve-Resource): UNPUBLISHED COBALT REPORT
Reference (Deposit): TABOR, R.W., BOOTH, D.B., VANCE, J.A., FORD, A.B., AND ORT, M.H., 1988, PRELIMINARY GEOLOGIC MAP OF THE SAUK RIVER 30 BY 60 MINUTE QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 88-692, SCALE 1:100,000.
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.
