The Jumbo Claim is a chromium mine located in Okanogan county, Washington.
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
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 Claim MRDS details
Site Name
Primary: Jumbo Claim
Commodity
Primary: Chromium
Secondary: Copper
Secondary: Nickel
Location
State: Washington
County: Okanogan
District: Nespelem District
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Mrs. Mamie Bowman
Years: 1943 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Form: FORMS VEINLETS
Structure
Not available
Alterations
Not available
Rocks
Name: Serpentinite
Role: Host
Age Type: Host Rock
Age Young: Paleocene
Name: Serpentinite
Role: Host
Age Type: Host Rock Unit
Age Young: Paleocene
Analytical Data
Analytical Data: 3 IN CHROMITE BAND, 1' SHEARED QUARTZ BAND HAVE CONSIDERABLE PERCENTAGE CHROMITE
Materials
Ore: Pyrite
Ore: Genthite
Ore: Chalcopyrite
Ore: Chromite
Gangue: Quartz
Comments
Comment (Deposit): PART OF THE STEPSTONE PROPERTY.
Comment (Location): SEE STEPSTONE (N;)
Comment (Development): CROSSCUT TUNNEL AND OPEN PITS.
Comment (Geology): 1500 FT NORTH OF CLAIM THE LIMESTONE-SERPENTINE BELT IS CUT OFF BY MESOZOIC COLVILLE GRANITE. ; GEOL.DESC: VEINLETS, SOME WALLROCKS MINERALIZED
References
Reference (Deposit): WASH. DMG BULL. 37, PART II, P. 38.
Reference (Deposit): USGS BULL 677, P. 85, PLATE 1
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.
