The Union Hill Mines is a silver and lead mine located in Eureka 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
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.
Union Hill Mines MRDS details
Site Name
Primary: Union Hill Mines
Secondary: Bell Mine
Commodity
Primary: Silver
Primary: Lead
Tertiary: Copper
Tertiary: Gold
Location
State: Nevada
County: Eureka
District: Union District
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
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1887
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: Great Basin
Physiographic Detail: Basin And Mountains
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Type: R
Description: Roberts Mountain Thrust
Type: L
Description: North And East Trending Fracture Zones
Alterations
Not available
Rocks
Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Late Devonian
Name: Limestone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Devonian
Analytical Data
Not available
Materials
Not available
Comments
Comment (Production): A LITTLE OVER $200,000. WORTH, ESTIMATED, TOTAL SINCE 1887
Comment (Workings): 4 SHAFTS & OTHER WORKINGS
Comment (Development): WORKED INTERMITTENTLY SINCE 1887. VIRTUALLY ALL ORE SHIPPED WAS FROM THE OXIDIZED ZONE
Comment (Deposit): REPLACEMENT BODIES AT INTERSECTIONS OF FRACTURE ZONES WITH LIMESTONE HORIZONS.
Comment (Geology): THE AREA IS UNDER LAIN BY CHERT AND SHALE OF THE OVERTHRUST. VININI FORMATION. THE ORE DEPOSITS OCCUR IN THE LOWER PLATE DEVONIAN LIMESTONE IN AND NEAR NORTH AND EAST TRENDING FRACTURE ZONES, AS IRREGULAR REPLACEMENT BODIES (ROBERTS, P. 111)
Comment (Deposit): THE PROPERTY IS DEVELOPED BY 4 SHAFTS (THE RYEGRASS, BELL AND NORTHSTAR) AND 4,000 FEET OF OTHER WORKINGS. WORKED INTERMITTENTLY SINCE 1887, TOTAL PRODUCTION HAS PROBABLY BEEN A LITTLE MORE THAN $200,000. VIRTUALLY ALL THE ORE SHIPPED WAS FROM THE ZONE OF OXIDATION AND AVERAGED 25% PB, 12 OZ/R AG. (VANDERBURG P.65) ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): ROBERTS, R.J., ET AL (1967) GEOLOGY AND MINERAL RESOURCES OF EUREKA CO., NEV. BUR. OF MINES BULL. 64
Reference (Deposit): USBM (WINNEMUCCA) MILS NO. 32, REFERENCE NO. 3201100014
Reference (Deposit): VANDERBURG W.O. (1938) RECONNAISSANCE OF MINING DISTRICTS IS EUREKA CO., USBM I.C. 7022
Reference (Production): ROBERTS, R.J. ET AL., (1967)
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.
