The West Willys Group is a silver mine located in Lyon county, Nevada.
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
West Willys Group MRDS details
Site Name
Primary: West Willys Group
Secondary: Old Washington Claim
Commodity
Primary: Silver
Tertiary: Uranium
Tertiary: Copper
Location
State: Nevada
County: Lyon
District: Washington 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
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1880
Discovery Year: 1949
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains
Mineral Deposit Model
Model Name: Polymetallic veins
Orebody
Form: PODS
Structure
Type: L
Description: Shear Zones
Alterations
Alteration Type: L
Alteration Text: Silicification, Argillization
Rocks
Name: Quartz Monzonite
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: VEIN SAMPLES: 0.002 TO 0.165% U3O8
Materials
Ore: Chrysocolla
Ore: Argentite
Ore: Torbernite
Ore: Chalcocite
Ore: Pitchblende
Ore: Chalcopyrite
Ore: Galena
Gangue: Quartz
Gangue: Sericite
Gangue: Barite
Gangue: Epidote
Comments
Comment (Location): UTM LOCATION APPROXIMATE
Comment (Deposit): First Production Year: FOR SILVER ABOUT 1880
Comment (Production): SMALL SILVER PRODUCTION, 1880-1900; NO URANIUM PRODUCTION
Comment (Workings): 7 ADITS, SHALLOW SHAFTS, PITS, OPEN CUTS
Comment (Deposit): WEST WILLYS GROUP CONSIST OF 7 CLAIMS ON BOTH SIDES OF AN UNNAMED CANYON 1/2 MI TO 1 1/2 MILES WEST OF THE EAST WALKER RIVER, LOCATED IN 1949. DEVELOPMENT CONSISTS OF SEVEN ADITS RANGING FROM 31 TO 367 FEET IN LENGTH, SEVERAL SHALLOW SHAFTS, PITS; PLUS OLD WORKINGS OF 7 ADITS AND 3 SMALL OPEN CUTS FOR SILVER ON THE WEST WILLYS NO. 7 OR OLD WASHINGTON CLAIM. THE OLD WASHINGTON MINE WAS MINED FOR SILVER BETWEEN 1880 & 1900.
Comment (Geology): RADIOACTIVITY IS ASSOCIATED WITH PODS OR THIN LAYERS OF SULFIDE MINERALS IN QUARTZ VEINS, WHICH CUT A PORPHYRITIC QUARTZ MONZONITE. FOUR ZONES OF THESE VEINS ARE PRESENT ON THIS GROUP OF CLAIMS. INDIVIDUAL QUARTZ VEINS RANGE FROM 1 INCH TO 1 1/2 FEET THICK. ANOMALOUS RADIOACTIVITY MAY BEIN PART ASSOCIATED WITH COPPER OXIDES.
References
Reference (Deposit): GARSIDE, 1973, RADIOACTIVE MINERAL OCCURRENCES IN NEVADA; NBMG BULL. 81
Reference (Deposit): STAATZ & BAUER, 1953, URANIUM IN THE EAST WALKER RIVER AREA, LYON COUNTY, NEVADA; USGS BULL. 988-C
Reference (Deposit): STAATZ & BAUER, 1954, WASHINGTON DISTRICT; IN RADIOACTIVE DEPOSITS OF NEVADA; USGS BULL. 1009-C
Reference (Deposit): MOORE, 1969, GEOLOGY AND MINERAL DEPOSITS OF LYON, DOUGLAS, & ORMSBY COUNTIES, NEVADA; NBMG BULL. 75
Reference (Production): GARDISE, L., 1973
Nevada Gold
Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.
