The St. Helena Mine is a gold mine located in Grant county, New Mexico.
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
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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.
St. Helena Mine MRDS details
Site Name
Primary: St. Helena Mine
Commodity
Primary: Gold
Tertiary: Lead
Location
State: New Mexico
County: Grant
District: Central District (Bayard District)
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1887
Year Last Production: 1935
Discovery Year: 1887
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: St. Helena Vein System
Alterations
Not available
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Galena
Gangue: Quartz
Comments
Comment (Production): SOME PRODUCTION BUT OPERATIONS NOT SUCCESSFUL. SOME ORE YIELDED AS MUCH AS 274 G/T AU; AVERAGE YIELD WAS ABOUT 17 G/T AU.
Comment (Development): MINED INTERMITTANTLY BETWEEN 1887 AND 1935. STAMP MILL ERECTED IN 1926.
Comment (Deposit): VEINS ALONG THE NNW-TRENDING ST. HELENA VEIN SYSTEM IN A CRETACEOUS QUARTZ DIORITE SILL
Comment (Workings): TWO SHAFTS, 60 M. AND 33 M. DEEP
References
Reference (Production): LASKY, S. G., 1936, U.S. GEOLOGICAL SURVEY BULL. 870, P. 136-137.
Reference (Deposit): LASKY, S. G., 1936, U.S. GEOLOGICAL SURVEY BULL. 870, P. 136-137
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