Bluff Mine

The Bluff Mine is a mercury, gold, and silver mine located in Esmeralda county, Nevada at an elevation of 5,400 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

Name: Bluff Mine  

State:  Nevada

County:  Esmeralda

Elevation: 5,400 Feet (1,646 Meters)

Commodity: Mercury, Gold, Silver

Lat, Long: 37.73306, -118.02583

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.


Satelite image of the Bluff Mine

Bluff Mine MRDS details

Site Name

Primary: Bluff Mine
Secondary: NBMG Sample Sites 1255
Secondary: 1966


Commodity

Primary: Mercury
Primary: Gold
Primary: Silver


Location

State: Nevada
County: Esmeralda
District: Dyer District


Land Status

Land ownership: BLM Administrative Area
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: Surface/Underground


Ownership

Owner Name: Wright, Mr.
Home Office: Dyer, Nv
Years: 1964 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

Not available


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Type: L
Description: Highly Contorted Limestone


Alterations

Alteration Type: L
Alteration Text: Silicification; Gossan-Like Alteration


Rocks

Name: Basalt
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Basalt
Role: Associated
Age Type: Host Rock
Age Young: Late Permian


Analytical Data

Analytical Data: AVERAGE PROBABLY 1 LB HG/TON (1964). STREAM SEDIMENT SAMPLES CONTIGUOUS WITH AND NORTH OF THE MINE (SS-129 AND SS-132) WERE ANOMALOUS IN W, HG AND TO A LESSER EXTENT, PB AND CU. SAMPLE 1255 CONTAINED 15% FE, 0.1% MG, 0.1% CA, 0.03% TI, 200 PPM MN, 5 PPM AG, 50 PPM BA, 5 PPM CO, 30 PPM CR, 20 PPM CU, 10 PPM NI, 1000 PPM PB, 300 PPM V.
Analytical Data: ASSAY ACROSS BEST SHEAR ZONE MATERIAL ASSAYED 4.4 LB/TON HG


Materials

Ore: Cinnabar
Gangue: Limonite
Gangue: Quartz


Comments

Comment (Deposit): FAULT INTERSECTION WITH STRONG LIMONITE AND SILICIFICATION FOR ABOUT 100 FT FROM THE INTERSECTION, BOTH ALONG FAULTS AND BETWEEN THEM. SHEAR ZONE WITH POROUS TO MASSIVE LIMONITE AFTER PYRITE, CONTAINING CINNABAR. CINNABAR ALSO OCCURS AS SMALL PATCHY FILMS AND LOW-GRADE DISSEMINATIONS

Comment (Workings): ONE INCLINED SHAFT BEARING DUE S, INCLINED AT 55 DEGREES, 45 FT DEEP. AT ABOUT 40-FT DEPTH, THERE IS 50 FT OF LEVEL WORKINGS TO THE EAST. SEVERAL OLD HAND-DUG PITS AND DOZER CUTS. EXTENSIVE BULLDOZER WORK.

Comment (Geology): POROUS TO MASSIVE LIMONITE AFTER PYRITE IN DRIFT, WITH FAIRLY COMMON CINNABAR. "BLUFF" TO NE OF MINE IS COMPOSED OF MASSIVE BLEACHED LIMESTONE (MARBLE), UNDERLAIN BY A SHALE UNIT

Comment (Location): AT FOOT OF SILVER PEAK MOUNTAINS, ABOUT 3 MILES ENE OF THE CIRCLE L(CORD) RANCH ; INFO FROM LAND.ST :(1972)

Comment (Commodity): CINNABAR IS PINKISH AND FINE-GRAINED

Comment (Development): DOZER WORK IN LAST 10-15 YEARS HAS CUT HILL PERPENDICULAR TO THE STRUCTURE. SEVERAL TRENCHES BOTH ACROSS AND ALONG THE SILICIFIED ZONE HAVE OBSCURED GEOLOGIC RELATIONS.


References

Reference (Deposit): BAKER, ART III, 1964, UNPUBLISHED SCOUTING REPORT ON THE BLUFF MINE; NBMG FILE 88, ITEM 1.

Reference (Deposit): TINGLEY, J.V., 1982, FIELD EXAMINATION OF 16 AUGUST 1982.

Reference (Deposit): QUADE, JACK, 1984, FIELD EXAMINATION OF 20 APRIL 1984.

Reference (Deposit): NBMG OFR 83-12, 1983


Nevada Gold

Gold Districts of Nevada

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.