St. Theresa Prospect

The St. Theresa Prospect is a copper and molybdenum mine located in Snohomish county, Washington at an elevation of 3,251 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: St. Theresa Prospect  

State:  Washington

County:  Snohomish

Elevation: 3,251 Feet (991 Meters)

Commodity: Copper, Molybdenum

Lat, Long: 47.93639, -121.59639

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.


Satelite image of the St. Theresa Prospect

St. Theresa Prospect MRDS details

Site Name

Primary: St. Theresa Prospect


Commodity

Primary: Copper
Primary: Molybdenum


Location

State: Washington
County: Snohomish
District: Sultan Basin District


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Owner Name: Washington Molybdenum Co.
Home Office: Seattle, WA
Years: 1945 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
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

Model Name: Polymetallic veins


Orebody

Form: VEIN


Structure

Not available


Alterations

Not available


Rocks

Name: Diorite
Role: Host
Age Type: Host Rock Unit
Age Young: Oligocene

Name: Diorite
Role: Host
Age Type: Host Rock
Age Young: Oligocene


Analytical Data

Not available


Materials

Ore: Chalcopyrite
Ore: Molybdenite
Gangue: Siderite
Gangue: Quartz
Gangue: Calcite


Comments

Comment (Location): ON STEEP SLOPE NORTHEAST OF SOUTH FORK SULTAN RIVER 5 MI ABOVE CONFLUENCE WITH NORTH FORK SULTAN RIVER

Comment (Deposit): MRDS RECORD D000691 HAS BEEN MERGED WITH THIS RECORD AND DELETED

Comment (Deposit): WIDELY DISTRIBUTED MINERALIZED PAPER THIN TO 2-IN.-WIDE FRACTURES TRENDING SW


References

Reference (Deposit): CARITHERS, WARD, AND GURAD, A.K., 1945, GEOLOGY AND ORE DEPOSITS OF THE SULTAN BASIN, SNOHOMISH COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 36, P. 74.

Reference (Deposit): TABOR, R.W., FRIZZELL, V.A., JR., BOOTH, D.B., WHETTEN, J.T., WAITT, R.B., JR., AND ZARTMAN, R.E., 1982, PRELIMINARY GEOLOGIC MAP OF THE SKYKOMISH RIVER 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-747, SCALE 1:100,000.

Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 272.

Reference (Deposit): PURDY, C.P., JR., 1954, MOLYBDENUM OCCURRENCES OF WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY REPORT OF INVESTIGATIONS 18, P. 65.


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