The Rockland Mine is a gold mine located in Lyon county, Nevada at an elevation of 8,501 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: 8,501 Feet (2,591 Meters)
Commodity: Gold
Lat, Long: 38.64639, -119.09417
Map: View on Google Maps
Rockland Mine MRDS details
Site Name
Primary: Rockland Mine
Secondary: Dolores-Rockland
Secondary: Pittsburg-Dolores
Commodity
Primary: Gold
Secondary: Silver
Tertiary: Copper
Location
State: Nevada
County: Lyon
District: Wilson 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
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1870
Discovery Year: 1867
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: TABULAR
Structure
Not available
Alterations
Not available
Rocks
Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Stephanite
Ore: Argentite
Ore: Pyrite
Gangue: Quartz
Comments
Comment (Location): UNSURVEYED TOWNSHIP
Comment (Deposit): Discovery Year: LATE 1860'S
Comment (Production): TOTAL PRODUCTION= 45,797 TONS ORE WITH GROSS VALUE $380,611, PRODUCED IN THE YEARS 1870 TO 1879, 1915 TO 1917 AND 1933 TO 1934.
Comment (Development): PRODUCTION INTERVALS WERE 1870-1879, 1915-1917, AND 1933-1934.
Comment (Workings): TUNNELS
Comment (Geology): ORE OCCURS IN A VEIN ENTIRELY IN GRANODIORITE AT ITS NORTH END, THEN FOLLOWING & PASSING INTO A RHYOLITE DIKE WITH THE DIKE FINALLY AS A FOOTWALL. THE VEIN AVERAGES 3 FEET IN WIDTH. THE VEIN IS A FILLED FISSURE WITH SOME REPLACEMENT OF THE WALLS BY ORE.
Comment (Deposit): DISCOVERED IN THE LATE 1860'S. IT PRODUCED 2,747 TONS OF ORE FROM 1870 TO 1879 WITH GROSS VALUE $74,503; 42,597 TONS FROM 1915 TO 1917 WITH GROSS VALUE $263,071; AND 443 TONS FROM 1933 TO 1934 WITH GROSS VALUE $43,037. DEVELOPED BY TUNNELS. ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): MOORE, 1969, GEOLOGY & MINERAL DEPOSITS OF LYON, DOUGLAS, & ORMSBY COUNTIES, NEVADA; NBMG BULL. 75
Reference (Deposit): STODDARD & CARPENTER, 1950, MINERAL RESOURCES OF STOREY & LYON COUNTIES, NEVADA; NEVADA; NBMG BULL. 49
Reference (Deposit): LINCOLN, 1923, MINING DISTRICTS AND MINERAL RESOURCES OF NEVADA; NEVADA NEWSLETTER PUBLISHING CO.
Reference (Deposit): HILL, 1915, SOME MINING DISTRICTS IN NORTHEASTERN CALIFORNIA & NORTHWESTERN NEVADA; USGS BULL. 594 USBM MINERALS YEARBOOK 1914, PART I.
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.
