The Nivloc Mine is a silver mine located in Esmeralda county, Nevada at an elevation of 6,161 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: 6,161 Feet (1,878 Meters)
Commodity: Silver
Lat, Long: 37.71583, -117.75722
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.
Nivloc Mine MRDS details
Site Name
Primary: Nivloc Mine
Secondary: Desert Silver
Secondary: Big Horn Nos. 1-8, Desert Nos. 1-6, Vancouver Nos. 1-3,
Secondary: Plata Nos. 1-10, Walter Nos. 1-3 Claims.
Secondary: NBMG Sample Site 1139.
Commodity
Primary: Silver
Secondary: Gold
Tertiary: Lead
Location
State: Nevada
County: Esmeralda
District: Silver Peak District (1865) (Red Mountain District, 1864)
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
Owner Name: Mr. Colvin
Home Office: Chicago
Years: 1923 -
Owner Name: Vollmer, F.
Home Office: Silver Peak
Years: 1923 - 1943
Owner Name: Sunshine And Midcontinent
Years: 1970 -
Owner Name: Braylorne, Ltd Of Canada
Owner Name: Sunshine Mining Co. And Mid-Continent Mining Corp.
Years: 1970 -
Production
Year: 1943
Time Period: 1937-1943
Material type: AU
Description: Cp_Grade: ^ 0.069 Oz/Ton Au.
Year: 1943
Time Period: 1937-1943
Material type: AG
Description: Cp_Grade: ^12.2 Oz/Ton Ag
Year: 1943
Time Period: 1937-1943
Material type: AU AG ORE
Description: Cp_Grade: ^ 0.05 Oz/Ton Au.
Year: 1943
Time Period: 1937-1943
Material type: AU AG ORE
Description: Cp_Grade: ^11 Oz/Ton Ag
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1925
Discovery Year: 1907
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: Y
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Model Name: Epithermal vein, Comstock
Orebody
Form: TABULAR
Structure
Type: R
Description: Silver Peak Caldera
Type: L
Description: Ne-Trending Faults
Alterations
Alteration Type: L
Alteration Text: Argillization, Silicification
Rocks
Name: Limestone
Role: Host
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Limestone
Role: Host
Age Type: Host Rock Unit
Age Young: Pliocene
Name: Limestone
Role: Host
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Production): $2 MILLION TO $3 MILLION WORTH OF AG AND AU WAS PRODUCED FROM 1937 TO 1943
Comment (Deposit): PRINCIPAL OPERATION OF THE NIVLOC MINE BEGAN IN 1938 UNDER THE DIRECTION OF BRAYLORNE, LTD. OF CANADA. OPERATING UNDER THE NAME OF DESERT SILVER, THE MINE PRODUCED OVER 400,000 TONS ORE UNTIL 1943 WHEN THE MINE PLANT AND MILL WERE SCRAPPED. FROM 1938 TO 1942, THE NIVLOC WAS NEVADA'S LARGEST SILVER PRODUCER. ; INFO.SRC : 1 PUB LIT
Comment (Workings): MINE WORKINGS WERE BADLY CAVED IN 1960'S; 600-FT VERTICAL SHAFT WITH CROSSCUTS ON THE 440 AND 600 LEVELS. FROM THE 600-FT. LEVEL, AN INCLINED WINZE WAS DRIVEN TO JUST BELOW THE 900 FT. LEVEL. 5 MAIN LEVELS IN THE MINE
Comment (Location): ABOUT 1.5 MILES EAST OF COTTONWOOD SPRINGS. UTM IS TO ONE SHAFT ON THE PROPERTY ; INFO FROM LAND.ST :(1972)
Comment (Development): MAIN PERIOD OF PRODUCTION WAS 1937-1943. IT WAS ESTIMATED IN 1966 THAT THERE WAS ABOUT 680,000 TONS OF "MILL-GRADE" ORE REMAINING IN THE MINE. STIMLER DID SOME NEAR-SURFACE WORK IN EARLY 1900'S, WHEN THE PROPERTY WAS KNOWN AS THE STIMLER MINE. IN ABOUT 1909, W.H. COLVIN, MILLIONAIRE CHICAGO BROKER, BOUGHT IS AND NAMED IT NIVLOC ("COLVIN", SPELLED BACKWARDS,) MINE WAS DORMANT, 1923-1928. COLVIN REOPENED IT IN 1928, WHEN IT WAS COMPRISED OF 13 CLAIMS
Comment (Deposit): SHEETED VEINS WHICH SHRINK IN WITH AS THEY PASS OUT OF THE TERTIARY SECTION AT THE 900 LEVEL OF THE MINE. MAIN VEIN TRACEABLE FOR ABOUT A MILE
References
Reference (Deposit): KEITH, W.J., 1977; USGS BULL 1423
Reference (Deposit): ALBERS, J.P. AND STEWART, J.H., 1972, GEOLOGY AND MINERAL DEPOSITS OF ESMERALDA COUNTY, NEVADA: N.B.M.G. BULL 78.
Reference (Deposit): HUGHES, H.H., (1940'S), UNPUBLISHED REPORT ON BIG HORN EXTENSION GROUP MINING CLAIMS, NIVLOC, NV; ON FILE AT NBMG, FILE 101, ITEM 16
Reference (Deposit): NIVLOC MINES, INC., 1946, UNPUBLISHED SUMMARY ON THE NIVLOC MINE; ON FILE AT NBMG, FILE 101, ITEM 24
Reference (Deposit): SHAMBERGER, H.A., 1976, SILVER PEAK: HISTORIC MINING CAMPS OF NEVADA, SERIES, NO. 8; NEVADA HISTORICAL PRESS; CARSON CITY, NEVADA.
Reference (Deposit): QUADE, J., 1982, FIELD EXAMINATION
Reference (Production): ALBERS AND STEWART, 1972 P.71. HUGHES, UNPUB. REPORT ON THE BIG HORN EXTENSION CLAIMS, P.3.
Reference (Reserve-Resource): EBBLEY, 1966, ROCKY MTN. MINERAL CONFERENCE TALK-NOTES.
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.
