Piermont

The Piermont is a silver mine located in White Pine county, Nevada at an elevation of 6,601 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

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.

Site Name

Primary: Piermont

Commodity

Primary: Silver
Secondary: Lead
Secondary: Gold
Secondary: Copper

Location

State: Nevada
County: White Pine
District: Piermont

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

Type: Unknown

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1870
Discovery Year: 1869
Years of Production:
Organization:
Significant: N

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: L
Description: Rocks Displaced Along Faults

Alterations

Not available

Rocks

Name: Andesite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Not available

Materials

Ore: Gold

Comments

Comment (Development): PIERMONT DISTRICT WAS ORGANIZED IN 1869. FIVE TONS WERE MINED IN 1870 AND A MILL WAS BUILT IN 1871 BUT SHUT DOWN IN 1873. MINE WAS CLOSED UNTIL 1916 WHEN 20 TONS WERE TREATED. EXPLORATION RESUMED IN 1926 WITH PRODUCTION FROM 1927 TO 1930.OTHER PERIODS OF PRODUCTION WERE 1935-1937, 1940-1942 AND 1953

Comment (Deposit): THE PIERMONT LEDGE WAS STOPED ALONG A BEDDING FAULT IN THE LOWER PART OF A BRECCIATED STRATUM OF LIMESTONE AND MARBLE DIPPING 45W BETWEEN 2 STRATA OF QUARTZITE. NEAR THE SURFACE THE LIMESTONE AND BEDDING FAULT ARE CUT BY A NORMAL FAULT THAT DIPS 35 SE. ABOVE THE NORMAL FAULT, LIMESTONE, QUARTZITE AND BLACK SCHIST BEDS DIP WEST, EXCEPT WHERE DRAG-FOLDING NEAR THE FAULT REVERSES THEIR DIP. SOME ORE WAS MINED ABOVE AND ALONG THE NORMAL FAULT FROM THE EAST-DIPPING LIMB OF THE DRAG FOLD IN DEEPER PARTS OF THE MINE THE WALLS OF THE LEDGE ARE OF DIFFERENT ROCKS (POSSIBLY SLATE AND QUARTZITE OR BRECCIATED LIMESTONE AND PORPHYRY).

Comment (Workings): THE MINE WAS REPORTED TO BE DEVELOPED BY TWO ADITS 3000 FT AND 1500 FT LONG, THREE INCLINED SHAFTS, THE DEEPEST TO 1,000 FT. AND ABOUT 10,500 FT OF DRIFTS AND CROSSCUTS

Comment (Deposit): CRIB SITES AND THEIR RECORD NUMBERS FOR THIS DISTRICT ARE BLACK JACK GROUP(D001313), DEWEY AND WHITE SWAN MINE(D000054), ILLINOIS GROUP(W006930), JONES-REILAND CLAIMS(D001315), LYDA K MINE(W016593), MANGANESE HILL GROUP(D001314), NAKAYE MINE(W016595), SIERRITE MINE(W016594) ; INFO.SRC : 1 PUB LIT

Comment (Geology): ORE MINED AROUND AND ALONG A BEDDING FAULT

Comment (Deposit): MOST DEPOSITS ARE VEINS IN FAULT-FRACTURE ZONES. SOME IRREGULAR REPLACEMENT BODIES OCCUR AND ONE LARGE BEDDED DEPOSIT OF OOLITIC HEMATITE OCCURS.

Comment (Production): ORE AVERAGED 13 OZ AG AND .03 OZ AU PER TON

Comment (Location): LATITUDE-LONGITUDE LOCATION IS APPROXIMATELY THE CENTER OF THE MOUNTAIN RANGE. LAND STATUS IS PREDOMINATELY BLM ADMINISTERED AND STATE LANDS ARE THE SECOND LARGEST GROUP. DRAINAGE AREA CODES ALSO INCLUDE 13030102 AND 13030103. THE CABALLO MOUNTAINS ARE ABOUT 30 MILES LONG TRENDING NORTH-SOUTH, FROM 6 TO 11 MILES WIDE, AND COVER ABOUT 165 SQUARE MILES. ELEVATIONS RANGE FROM 4000 FT. TO 7500 FT..

Comment (Location): NEAR MOUTH OF PIERMONT CANYON

Comment (Geology): THE STEEP, WEST-FACING ESCARPMENT OF THE CABALLO MOUNTAINS PARALLELS THE RIO GRANDE VALLEY AND EXPOSES PRECAMBRIAN ROCKS OVERLAIN BY ABOUT 5000 FT. OF PALEOZOIC, MOSTLY MARINE, SEDIMENTARY ROCKS. THE PREC. ROCKS CONSIST OF GRANITE AND LESSER AMOUNTS OF SCHIST AND GNEISS. THE SEDIMENTARY SEQUENCE BEGINS WITH UPPER CAMB. TO LOWER ORD. BLISS SANDSTONE FM. AND OVERLAIN IN ASCENDING ORDER BY ORD. EL PASO LIMESTONE FM., LOWER ORD. MONTOYA LIMESTONE FM., MID SIL. FUSSELMAN DOLOMITE FM., UPPER DEV. PERCHA SHALE FM., LOWER MISS. LAKE VALLEY FM., MID TO UPPER MAGDALENA GROUP; AND LOWER PERM. ABO FM. IS EXPOSED ON THE EASTERN, DIP SLOPE SIDE OF THE MOUNTAIN ALONG WITH PERM. CHUPADERA FM., CRET. MANCOS FM. AND TERT-CRET. IGNEOUS ROCKS. TECTONIC SETTING IS CONTINENTAL PLATFORM DISRUPTED BY CENOZOIC VULCANISM AND EXTENSIVE BASIN AND RANGE DEFORMATION.

References

Reference (Deposit): HOSE, BLAKE, SMITH, 1976, GEOLOGY AND MINERAL RESOURCES OF WHITE PINE CO, NEV., NEV BUREAU OF MINES AND GEOLOGY BUL 85

Reference (Deposit): LINCOLN, F.C., 1923, MINING DISTRICTS AND MINERAL RESOURCES OF NEVADA; NEVADA NEWSLETTER PUBLISHING CO, RENO, NV

Reference (Deposit): NBMG FILE 336, PRESS CLIPPINGS, 1914, ENG. AND MIN. JOUR.

Reference (Deposit): WEED, W.H.,ED., 1922, THE MINES HANDBOOK, VOL. XV, P.1303.

Reference (Deposit): RAYMOND, R.W., 1871, USBM MINERALS YEARBOOK, P. 203-204.

Reference (Deposit): COUCH, B.F. AND CARPENTER, J.A., 1943, NBMG BULL 38, P.152.

Reference (Production): HOSE, 1976

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.