The Stanfield Prospect is a tungsten mine located in Beaverhead county, Montana at an elevation of 6,401 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: 6,401 Feet (1,951 Meters)
Commodity: Tungsten
Lat, Long: 45.38889, -112.82667
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.
Stanfield Prospect MRDS details
Site Name
Primary: Stanfield Prospect
Commodity
Primary: Tungsten
Location
State: Montana
County: Beaverhead
District: Birch Creek (Utopia) 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
Type: Surface/Underground
Ownership
Owner Name: Stanfield Brothers
Home Office: Dillon
Years: 1960 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Deposit Type: Contact Metasomatic
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Pioneer Mountains
Mineral Deposit Model
Not available
Orebody
Form: QUARTZ VEINLETS
Structure
Type: L
Description: East Flank-Humbolt Mtn. Anticline, Pioneer Batholith
Alterations
Not available
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Mississippian
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Mississippian
Analytical Data
Analytical Data: CHIP SAMPLES OF TACTITE ASSAYED 0.02 TO 0.21 % WO3.
Materials
Ore: Scheelite
Comments
Comment (Development): 2 ADITS WERE DRIVEN ABOUT 1903 TO EXPLORE FOR COPPER. IN 1954-55 THE PROPERTY WAS DEVELOPED FOR TUNGSTEN WITH A MILL, PIT, AND BULLDOZER TRENCHES.
Comment (Deposit): TACTITE IS INTERMITTENTLY EXPOSED FOR 1,850 FT., AVERAGING 120 FEET WIDE. VEINS TREND GENERALLY NE TO NW.
Comment (Workings): 2 EARLY ADITS, ONE SHAFT, ABOUT 7 TRENCHES, AND ON OPEN PIT.
Comment (Geology): GEOL.DESC: ON E. MARGIN OF MT. TORREY BATHOLITH AT CONTACT WITH MISSION CANYON LS.
References
Reference (Deposit): USBM RI 5552, P. 24-28
Reference (Deposit): 1960 RECON U.S. BUREAU OF MINES, R.I. 555
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.
