The First Thought is a zinc, lead, silver, and copper 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
Elevation:
Commodity: Zinc, Lead, Silver, Copper
Lat, Long: 48.49306, -119.73889
Map: View on Google Maps
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First Thought MRDS details
Site Name
Primary: First Thought
Commodity
Primary: Zinc
Primary: Lead
Primary: Silver
Primary: Copper
Location
State: Washington
County: Okanogan
District: Conconully, Ruby Hill Area
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
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
Type: R
Description: The Conconully Pluton Is A Directionless, Post-Tectonic Plutonic Rock That Intruded Into A Major Structural Zone (Stoffel, K.L., Dger, 1990, Oral Commun.).
Alterations
Not available
Rocks
Name: Schist
Role: Host
Age Type: Host Rock
Age Young: Late Triassic
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Sphalerite
Ore: Stephanite
Ore: Tetrahedrite
Ore: Galena
Ore: Chalcocite
Gangue: Quartz
Gangue: Pyrite
Comments
Comment (Geology): THE MINERALIZATION AT THE FIRST THOUGHT OCCURS IN THE GNEISS AND QUARTZITE OF THE METAMORPHIC COMPLEX OF CONCONULLY NEAR THE CONTACT OF THE CONCONULLY PLUTON OF CRETACEOUS AGE (RINEHART, 1981; STOFFEL, 1990).
Comment (Deposit): UNDERGROUND WORKINGS OF THE FIRST THOUGHT CONSIST OF MORE THAN 4000 FEET OF DRIFTS ON THREE LEVELS THAT HAVE A VERTICAL EXTENT OF 350 FEET (MOEN, 1973, P. 17). ; INFO.SRC : 1 PUB LIT
Comment (Production): THE MINE PRODUCED ORE VALUED AT $66,000 FROM 1892 TO 1893. PRODUCTION CAME TO AN END DURING THE SILVER PANIC OF 1893. SEVERAL SMALL SHIPMENTS OF SILVER ORE WERE MADE FROM THE MINE IN THE 1920'S (MOEN, 1973, P. 16).
References
Reference (Deposit): HUNTTING, M. T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P.; V. 2, 67 P.
Reference (Deposit): MOEN, W.S., 1973, CONCONULLY MINING DISTRICT OF OKANOGAN COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY INFORMATION CIRCULAR 49, 42 P.
Reference (Deposit): PATTY, E.N., 1921, THE METAL MINES OF WASHINGTON: WASHINGTON GEOLOGICAL SURVEY BULLETIN 23, 366 P.
Reference (Deposit): RINEHART, C.D., 1981, RECONNAISSANCE GEOCHEMICAL SURVEY OF GULLY AND STREAM SEDIMENTS, AND GEOLOGIC SUMMARY, IN PART OF THE OKANOGAN RANGE, OKANOGAN COUNTY, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES BULLETIN 74, 24 P., 3 PL.
Reference (Deposit): STOFFEL, K.L., COMPILER, 1990, GEOLOGIC MAP OF THE OROVILLE 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN FILE REPORT 90-11, 58 P., 1 PL.
Reference (Deposit): DERKEY, R.E.; JOSEPH, N.L.; LASMANIS, R., 1990, METAL MINES OF WASHINGTON-PRELIMINARY REPORT: STATE OF WASHINGTON, DEPARTMENT OF NATURAL RESOURCES, DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, 577 P.
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.
