The Douglas Hill Mine is a copper mine located in Lyon county, Nevada at an elevation of 5,600 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: 5,600 Feet (1,707 Meters)
Commodity: Copper
Lat, Long: 38.95111, -119.26972
Map: View on Google Maps
Douglas Hill Mine MRDS details
Site Name
Primary: Douglas Hill Mine
Secondary: Nevada Douglas
Commodity
Primary: Copper
Secondary: Silver
Tertiary: Gypsum-Anhydrite
Tertiary: Gold
Location
State: Nevada
County: Lyon
District: Yerington
Land Status
Land ownership: Private
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
Year: 1914
Time Period: 1911 - 1914
Material type: CU
Description: Cp_Grade: ^5 Percent Cu
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Sedimentary
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
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: Skarn Cu
Orebody
Form: IRREGULAR
Structure
Type: R
Description: Yerington Batholith
Alterations
Alteration Type: L
Alteration Text: Shallow Oxidation, Albitic, Sericitic, Propylitic, Week Potassic
Rocks
Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Jurassic
Name: Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic
Analytical Data
Analytical Data: CHALCOPYRITE/PYRITE RATIOS GENERALLY GREATER THAN 10
Analytical Data: LESS THAN 5 VOLUME PERCENT TOTAL SULFIDES
Materials
Ore: Chrysocolla
Ore: Bornite
Ore: Chalcopyrite
Ore: Pyrite
Ore: Covellite
Ore: Chalcocite
Comments
Comment (Geology): STRONG BRECCIATION
Comment (Location): 1/2 MI. SOUTH OF LUDWIG MINE
Comment (Deposit): SKARN DEPOSIT LOCATED IN THE TRIASSIC SEPTUM WEST OF THE MASON VALLEY MINE ( REFER TO RECORD NO. M035865 ) CONTACT METASOMATIC
Comment (Workings): 13 LARGE PITS
References
Reference (Deposit): READ, T. T., 1912 , THE NEVADA DOUGLAS MINES, MINING AND SCIENTIFIC PRESS
Reference (Deposit): KNOPF, A., 1918 , GEOLOGY AND ORE DEPOSITS OF THE YERINGTON DIST., NEV. USGS PROF. PAPER 114 .
Reference (Deposit): EINAUDI, M. T., 1977 , PETROGENISIS OF THE COPPER-BEARING SKARN AT THE MASON VALLEY MINE, YERINGTON, NEV., ECON. GEOL., VOL. 70 , NO. 5 .
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.
