First Thought Mine

The First Thought Mine is a gold mine located in Stevens county, Washington at an elevation of 2,900 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

Name: First Thought Mine  

State:  Washington

County:  Stevens

Elevation: 2,900 Feet (884 Meters)

Primary Mineral: Gold

Lat, Long: 48.88389, -118.16111

Map: View on Google Maps

Satelite View


Satelite image of the First Thought Mine

Mine Description

Location: Secs. 7 and 18, (39-37E).

Access: 3 mi. E. of railroad at Orient, on First Thought Mtn. Lookout road.

Property: 17 patented, 11 unpatented claims.

Owner: Gold Syndicate Corp., Spokane, Wash. (1949 --). First Thought Gold Mines Co., Ltd. (1905-1934). First Thought Mining Corp. 0937-1944).

Ore: Gold, silver.

Ore minerals: Pyrite, free gold.

Gangue: Quartz, calcite. Deposit: Mineralized zone 15 to 110 ft. wide in rhyolite porphyry and quartz latite. Richer ores in the zone occur at intersections of faults. Dev: 1112 mi. of workings on 7 levels. Assays: 40,000 tons of ore avo % oz. Au, 1f2 oz. Ag.

Production: $1,350,000 in gold prior to 1948. Produced 1904, 1906-1909, 1934-1942.

Source: Gold in Washington, Bulletin No. 42, 1955. State of Washington Division of Mines and Geology.

First Thought Mine MRDS details

Site Name

Primary: First Thought Mine


Commodity

Primary: Gold
Secondary: Silver


Location

State: Washington
County: Stevens
District: Orient District


Land Status

Not available


Holdings

Not available


Workings

Type: Underground


Ownership

Owner Name: Gold Syndicate Corp.


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1904
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
Physiographic Detail: Okanogan Highlands


Mineral Deposit Model

Not available


Orebody

Form: IRREGULAR


Structure

Not available


Alterations

Not available


Rocks

Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Rhyolite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene


Analytical Data

Analytical Data: 40,000 TONS AVERAGED 0.75 OZ/TON AU AND 0.5 OZ/TON AG


Materials

Ore: Gold
Gangue: Pyrite
Gangue: Quartz


Comments

Comment (Workings): MINE DEVELOPED BY 3 ADITS, SHAFT, WINZE, AND 3 LEVELS TURNED FROM WINZE

Comment (Deposit): ORE IN BRECCIA ZONE NEAR CONTACT BETWEEN RHYOLITE AND LATITE WHERE CROSSED BY FAULTS

Comment (Deposit): DUPLICATE RECORD M056475 HAS BEEN DELETED.


References

Reference (Deposit): BANCROFT, HOWLAND, 1914, THE ORE DEPOSITS OF NORTHEASTERN WASHINGTON: USGS BULL. 550, P. 71-76

Reference (Deposit): WEAVER, C.E., 1920, THE MINERAL RESOURCES OF STEVENS COUNTY: WASH. GEOLOGICAL SURVEY BULL. 20, P. 258-260

Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS PART II, METALLIC MINERALS: WASH. DIV. MINES AND GEOL. BULL. 37, V. 1, P. 169

Reference (Deposit): 1909 RECON BANCROFT, H. BULLETIN REPOR

Reference (Production): U.S.B.M. INFO. CIRC. 7872 P. 43