Isabella Mine

The Isabella Mine is a silver mine located in Lander county, Nevada at an elevation of 6,936 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: Isabella Mine

Commodity

Primary: Silver
Secondary: Gold

Location

State: Nevada
County: Lander
District: Reese River 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: Surface/Underground

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
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

Model Name: Polymetallic veins

Orebody

Not available

Structure

Type: L
Description: Fractures, Postmineral Faults

Alterations

Alteration Type: L
Alteration Text: Oxidation

Rocks

Name: Quartz Monzonite
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic

Analytical Data

Not available

Materials

Ore: Stephanite
Ore: Polybasite
Ore: Sphalerite
Ore: Galena
Ore: Chalcopyrite
Ore: Argentite
Ore: Proustite
Ore: Silver
Ore: Cerargyrite
Ore: Pyrargyrite
Ore: Stibnite
Gangue: Graphite
Gangue: Pyrite
Gangue: Pyrolusite
Gangue: Quartz
Gangue: Ankerite
Gangue: Calcite

Comments

Comment (Deposit): IN 1936 THE MINE WAS REOPENED AND SOME MATERIAL WAS TAKEN FROM THE GOB AND PILLARS IN THE OLD SLOPES. TWENTY TONS OF ORE WERE MILLED

Comment (Deposit): RETICULATE VEIN PATTERN WITH IRREGULAR ORE SHOOTS THAT ARE GENERALLY LESS THAN 100 FT LONG

Comment (Workings): THE ISABELLA VEIN IS EXPOSED NEAR THE FLOOR OF THE INCLINE DOWN TO THE 200-FT LEVEL WHERE OLD STOPES WERE REOPENED BY THE AUSTIN SILVER MINING CO. FOR A SHORT DISTANCE TO THE NORTHWEST. NO VEINS ARE EXPOSED ALONG THE INCLINE FOR ABOUT 90 FT ON THE DIP BELOW THE 200-FT LEVEL. A CROSSCUT EXTENDS NORTHEAST FROM THE BOTTOM OF THE INCLINE. CAVED DRIFTS ON A NARROW VEIN INTERSECT THIS CROSSCUT A SHORT DISTANCE FROM THE INCLINE. THE MAIN CROSSCUT FROM THE ISABELLA INCLINE IS ACCESSIBLE ONLY TO THE CURRELLY VEIN.

Comment (Geology): THE VEINS ARE INTERSECTED BY 3 NORMAL FAULTS

Comment (Location): CHOSE A POINT ALONG SECTION BOUNDARY

Comment (Production): PRODUCTION BEFOR 1887 WAS $626,798.78.

References

Reference (Deposit): STEWART, J.H., MCKEE, E.H., AND STAGER, H.K., 1977, GEOLOGY AND MINERAL DEPOSITS OF LANDER COUNTY, NEVADE: NBMG BULL. 88.

Reference (Deposit): ROSS, C.P., 1953, THE GEOLOGY AND ORE DEPOSITS OF THE REESE RIVER DISTRICT; LANDER COUNTY, NEVADE: USGS BULL. 977.

Reference (Deposit): MOULTON, G.G., 1936, REPORT ON INSPECTION OF PROPERTY AT AUSTIN, NEVADA (UNPUB):NBMG FILES

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.