Boston-Pioche Mine

The Boston-Pioche Mine is a silver, lead, and zinc mine located in Lincoln 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.

Site Name

Primary: Boston-Pioche Mine
Secondary: NBMG Sample Site 1424 Area Silver Peak
Secondary: Lafayette
Secondary: Peavine
Secondary: American Flag 1870's

Commodity

Primary: Silver
Primary: Lead
Primary: Zinc
Secondary: Copper
Tertiary: Arsenic
Tertiary: Antimony

Location

State: Nevada
County: Lincoln
District: Pioche 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

Not available

Ownership

Not available

Production

Year: 1935
Time Period: 1928-1935
Material type: ORE AGAUPB
Description: Cp_Grade: ^25 Oz/T Ag, 0.4 Oz/T Au, 10-20% Pb.

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1875
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Model Name: Polymetallic veins

Orebody

Form: TABULAR

Structure

Type: L
Description: Shears

Alterations

Alteration Type: L
Alteration Text: Silicification

Rocks

Name: Quartzite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cambrian

Name: Quartzite
Role: Host
Age Type: Host Rock
Age Young: Late Cambrian

Analytical Data

Analytical Data: SAMPLE 1424 CONTAINS 150 PPM MN, 2000 PPM AG, 2000 PPM AS, 100 PPM BA, 2000 PPM CU, GREATER THAN 20000 PPM PB, 5000 PPM SB, 300 PPM SN, 100 PPM V, 1000 PPM ZN.

Materials

Ore: Malachite
Ore: Chrysocolla
Gangue: Pyrite
Gangue: Iron
Gangue: Quartz
Gangue: Jarosite
Gangue: Sericite

Comments

Comment (Production): EARLY FIGURES WERE FOR SILVER PEAK MINE FROM "PIOCHE RECORD" CLIPPINGS. 1928-1935 PRODUCTION WAS BY DAVID LLOYD.

Comment (Deposit): WORKINGS FOLLOW A QUARTZ-CEMENTED SHEAR ZONE; APPEARS TO BE ONE OF A SET OF PARALLEL SHEARS ON SE SLOPE OF TREASURE HILL. SERICITE FLAKES COAT FRACTURE SURFACES ALONG WITH MINOR JAROSITE. ORE OCCURS IN VERY FINE-GRAINED CRYSTALLINE FISSURE VEIN OF CALCITE/QUARTZ WITH DISSEMINATED PB-ZN SULFIDES. HEAVY; BLACK NODULES OF "COOKED" HYDROTHERMALLY ALTERED GOSSANY ORE STAINED WITH YELLOW OXIDES ABUNDANT ON DUMP. QUARTZ SHEAR MATERIAL CARRIES OXIDIZED PYRITE AND IS COATED WITH MALACHITE, CHRYSOCOLLA, SECONDARY SILICA AND GRANULAR SPHALERITE INTERSPERSED WITH PYRITE.

Comment (Workings): SINGLE CAVED ADIT; WITH OTHER WORKINGS IN THE AREA: PEAK SHAFT, CUT AND SHORT ADIT 200 FT NW OF AND 60 FT VERTICALLY BELOW PEAK COLLAR, AND A LOWER ADIT (PEAK TUNNEL); LAFAYETTE SHAFT; PEAVINE SHAFT (GREATER THAN 180 FT DEEP)

Comment (Deposit): DEVELOPED SPRING, FREE-FLOWING; ACCESS ROAD DANGEROUS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Comment (Location): NEAR YUBA MINE ; INFO FROM LAND.ST :1972

Comment (Deposit): Discovery Year: 1870'S

Comment (Development): PRODUCTION FROM SILVER PEAK REPORTED IN 1873, WITH INCLINE DOWN 530 FT IN 1874, HIT GOOD ORE BODY AT 545 FT, MORE AT 550 FT. PRODUCTION CONTINUED IN 1874 WITH ONLY AG AND AU BEING RECOVERED. PB WAS LOST. DAVID LLOYD MINED THE PROPERTY FROM 1928 TO 1935 BETWEEN THE SURFACE AND THE 85-FT LEVEL. FROM 1959-1960, MR. DANIELSON AND R.T. SCHULTZ CLEANED OUT THE PEAK TUNNEL AND LAID TRACK, AIRLINE AND WATERLINE. ADDITIONAL EXCAVATING, CROSS-CUTTING AND DRIFTING WERE DONE AS NEEDED, AND SURVEYING, MAPPING, AS WELL. EARLY REPORTS TELL OF THE SINKING OF THE PEAVINE SHAFT IN 1872-1874 WITH ORE IN SIGHT.

References

Reference (Deposit): SMITH, P. AND BENTZ, J., 1983, FIELD EXAMINATION REPORT, AUG. 23, 1983.

Reference (Deposit): USGS P.P. 171

Reference (Deposit): USGS MAP MF-136.

Reference (Deposit): NBMG DISTRICT FILE 175, ITEM 12 A AND MAP FILE 175; 1960, BY R.T. SCHULTZ.

Reference (Deposit): ABBOTT, J.W., 1914, MIN & SCI PRESS, P. 484.

Reference (Deposit): USBM, 1983, MILS DATA

Reference (Production): SCHULTZ, 1960; COUCH AND CARPENTER, 1943, P. 87.

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.