The Thunder Mountain Group is a chromium mine located in Whatcom 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.
Thunder Mountain Group MRDS details
Site Name
Primary: Thunder Mountain Group
Secondary: Claims: Crater: Hardscrabble
Secondary: Thunder Group
Secondary: Odmark Group
Commodity
Primary: Chromium
Tertiary: Magnesite
Tertiary: Iron
Location
State: Washington
County: Whatcom
District: Mount Baker 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
Owner Name: Odmark, Albert
Years: 1956 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Discovery Year: 1931
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
Analytical Data: 13.3 TO 31.3% CR, WITH AVERAGE OF 18.2% CR FROM 7 SAMPLES, 3.8% FE, 9.9% MG
Materials
Ore: Chromite
Gangue: Dunite
Comments
Comment (Location): INFO FROM LAND.ST :(1973)
Comment (Deposit): 10 CLAIMS ; INFO.SRC : 1 PUB LIT
Comment (Deposit): SMALL STRINGERS AND STREAKS OF CHROMITE OVER AREA 60 FTE-W, BY 50 FT.
References
Reference (Deposit): HUNTTING, MARSHALL T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULL. 37, P. 42
Reference (Deposit): MOEN, WAYNES., 1909, MINES AND MINERAL DEPOSITS OF WHATCOM COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULL. 57, P. 67-68
Reference (Deposit): USGS, 1966, MINERAL AND WATER RESOURCE OF WASHINGTON; U.S. GOVERNMENT PRINTING OFFICE P. 69
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.
