The Jumbo Mine is a silver and lead mine located in Lake county, Montana at an elevation of 5,000 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: 5,000 Feet (1,524 Meters)
Commodity: Silver, Lead
Lat, Long: 47.955, -114.35861
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 Mine MRDS details
Site Name
Primary: Jumbo Mine
Commodity
Primary: Silver
Primary: Lead
Secondary: Copper
Secondary: Gold
Location
State: Montana
County: Lake
District: Chief Cliff 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.
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1914
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Salish Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Nw-Plunging Anticline To The West. Large Scale N-Trending And W-Trending Faults To The East.
Alterations
Not available
Rocks
Name: Argillite
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Argillite
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Analytical Data: STOCKPILED PORTION OF VUGGY WHITE QUARTZ VEIN ASSAYED 10.20 % PB, 1.40 OZ/TON AG AND 0.003 OZ/TON AU. ANOTHER SAMPLE OF FIELD MATERIAL FROM THE DUMP CONTAINED SMALL AMOUNTS OF GOLD, SILVER AND COPPER.
Materials
Ore: Chalcopyrite
Ore: Galena
Ore: Malachite
Gangue: Quartz
Comments
Comment (Location): ON A TRIBUTARY OF THE NORTH FORK OF DAYTON CREEK.
Comment (Workings): WORKINGS CONSIST OF ONE ADIT AND ONE SHAFT - BOTH OF WHICH ARE CAVED - AS WELL AS A 40 FT TRENCH AND TWO SHALLOW PITS.
Comment (Geology): FISSURE VEINS TEND TO LIE PARALLEL TO FAULTS IN THIS AREA. HOST ROCKS STRIKE NW AND DIP EAST.
Comment (Development): PROPERTY HAS BEEN IDLE SINCE 1926 . A DUMP CONTAINING ABOUT 50,000 TONS OF WASTE ROCK, INDICATES CONSIDERABLE DEVELOPMENT WORK.
Comment (Deposit): CONTACT WITH VEIN IS COVERED. VEIN WIDTH HAS BEEN ESTIMATED FROM QUARTZ BOULDERS IN THE STOCKPILE TO BE IN EXCESS OF 2 FT. QUARTZ IS VUGGY.
References
Reference (Analytical Data): SRC.REF: JOHNS, W. M., 1970 : MONTANA BUREAU OF MINES AND GEOLOGY BULL. 79 , P. 144 .
Reference (Deposit): JOHNS, W. M., 1964 , GEOLOGIC INVESTIGATIONS IN THE KOOTENAI - FLATHEAD AREA, NORTHWEST MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY BULL. 42 , PP. 45 - 46 .
Reference (Deposit): JOHNS, W. M., 1970 , GEOLOGY AND MINERAL DEPOSITS OF LINCOLN AND FLATHEAD COUNTIES, MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY BULL. 79 , P. 144 .
Reference (Deposit): CONSV. DIV. COMP. DATE, 12-22-1970
Principal Gold Districts of Montana
In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.
