The Bonanza Mine is a copper mine located in Elko county, Nevada at an elevation of 7,300 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: 7,300 Feet (2,225 Meters)
Commodity: Copper
Lat, Long: 41.7775, -114.84972
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.
Bonanza Mine MRDS details
Site Name
Primary: Bonanza Mine
Secondary: Dolly B.
Commodity
Primary: Copper
Secondary: Gold
Secondary: Silver
Tertiary: Molybdenum
Location
State: Nevada
County: Elko
District: Contact (48)
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: S. J. Sneider
Years: 1912 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1896
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Snake River Plain
Mineral Deposit Model
Model Name: Skarn Cu
Orebody
Form: TABULAR
Structure
Type: L
Description: Granodiorite Stock With Assoc. Faults & Fractures
Alterations
Alteration Type: L
Alteration Text: Oxidation
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Jurassic
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Pennsylvanian
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Jurassic
Analytical Data
Analytical Data: LOAD AVG. 7% CU
Materials
Ore: Chalcopyrite
Gangue: Garnet
Gangue: Calcite
Comments
Comment (Location): MOST WESTERLY OF MINES IN THE NORTH CONTACT AREA
Comment (Development): PATENTED CLAIMS; MINE IDLE SINCE 1910; 14 CLAIMS
Comment (Deposit): LODE AVERAGING 4% CU
Comment (Geology): ALASKITE DIKE IS ALSO MINERALIZED WHERE IT CUTS THE MINERALIZED LIMESTONE
Comment (Deposit): THIS MINE HAS BEEN IDLE SINCE 1910. SMALL WORKINGS DEVELOP ORE THROUGH A VERTICAL RANGE OF 350 FEET IN THE SIDES OF A CANYON (SCHRADER, 1935, P 35). MINE WAS LOCATED IN 1896 BY MESSRS. COLEMAN, MOORE, AND THOMPSON UNDER THE NAME DOLLY B. THE PROPERTY COMPRISES A GROUP OF 14 CLAIMS. THE PRINCIPAL MINE OPENINGS ARE NEAR THE APEX OF THE ORE IN THE BOTTOM OF THE CANYON NEAR CAMP. ONE TUNNEL IS DRIVEN TO THE NE AND ONE TO THE NW. BOTH ARE SLIGHLLY OVER 200 FT. IN LENGTH, AND ARE IN META-LIMESTONE. THE NW TUNNEL HAS ENCOUNTERED A BODY OF SALFIDE ORE DIPPING 20 N. THERE SEENS TO BE TWO SEPARATC LODES IN THE MINE THE UPPER EAST TUNNEL IS DRIVEN IN LIMESTONE DIPPING 30-40 WEST. AT THE PORTAL, THIS TUNNEL SHOWS THE 20-FOOT MINERALIZED LODE, WHICH AVERAGES ABOUT 4% CU (SCHRADER, 1912 P 103, 126-) FOR GEOLOGIC AND ECONOMIC DESCRIPTIONS OF THE PROPERTY ENCOMPASSED BY DAIMS #2 AND #4, ALSO LOCATED IN THE CONTACT ZONE, SEE SCHRADER, 1912, P 128). MINERAL SURVEY NO 4267, 3904
Comment (Production): $5000 TO $100,000 TOTAL PRODUCTION
Comment (Workings): SMALL WORKINGS, TUNNELS OVER 200 FT LONG
References
Reference (Deposit): SCHRADER, F.C. (1912) A RECONN. OF THE JARBIDGE, CONTACT, AND ELK MT. MINING DISTRICTS, ELKO CO., NEVADA: USGS BUL 497.
Reference (Production): SMITH, R.M., (1976)
Reference (Deposit): SCHRADER, F.C. (1935) THE CONTACT MINING DISTRICT, NEVADA: USGS BULL. 847-A.
Reference (Deposit): HOPE, R.A. & COATS, R.R. (1976) PRELIM. GEOLOGIC MAP OF ELKO CO., NEV: USGS OFR 76-779
Reference (Deposit): SMITH, R.M. (1976) MINERAL RESOURCES OF ELKO CO., NEV; USGS OFR 76-56, P 39-45
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.
