Protection Group Mine

The Protection Group Mine is a gold and silver mine located in Elko 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: Protection Group Mine

Commodity

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

Location

State: Nevada
County: Elko
District: Mountain City

Land Status

Not available

Holdings

Not available

Workings

Type: Underground

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1872
Discovery Year: 1872
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Payette Section

Mineral Deposit Model

Model Name: Polymetallic veins

Orebody

Form: TABULAR

Structure

Type: L
Description: Faults

Alterations

Alteration Type: L
Alteration Text: Leaching Of Ferromags And Sericitization Of Feldspars

Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Analytical Data

Analytical Data: SORTED ORE CARRIED $100/TON IN AG AND AU

Materials

Ore: Proustite
Ore: Tetrahedrite
Ore: Sphalerite
Ore: Galena
Ore: Cerargyrite
Ore: Stephanite
Gangue: Quartz
Gangue: Pyromorphite
Gangue: Pyrite

Comments

Comment (Deposit): Discovery Year: EARLY 1870'S

Comment (Development): MINE FIRST WORKED IN THE EARLY 1870'S, AND REOPENED IN 1946 FOR A 3-YEAR PERIOD DURING WHICH 2000 TONS ORE AVERAGING 40 OZ/TON AG WAS PRODUCED(ALSO 0.75OZ/TAU). A 10-STAMP AMALGAMATING AND CONCENTRATING MILL WAS BUILT NEAR THE PROTAL OF THE TUNNEL TO TREAT

Comment (Production): OVER $100,000 WORTH OF PRODUCTION INCLUDING SOME LEAD AND ZINC. 1947- ORE AVERAGED 40 OZ/TON AG AND 0.75 OZ/TON AU.

Comment (Deposit): VEIN, FISSURE FILLING.

Comment (Workings): TUNNEL, SHAFT

Comment (Geology): IN ROBERTS ETAL P. 29 THE AHE OF MINERALIZATION IS PLACED AS EARLY TERTIARY VEIN IS A FISSURE FILLING IN GRANDDIORITE, UP TH 4 FT. WIDE

Comment (Deposit): THE VEIN IS APPROX. 4 FEET WIDE. THE MINE WAS FIRST WORKED IN THE EARLY 1870'S BUT WAS REOPENED IN 1946 AND FOR A THREE YEAR PERIOD PRODUCED 2,000 TONS OF ORE AVERAGING 40 OZ/TON AG, AND 0.07 OZ/TON AV. A 10-STAMP AMALGAMATING & CONCENTRATING MILL WAS BUILT NEAR THE PORTAL OF THE TUNNEL TO TREAT THE ORE. 62-FT SHAFT & TUNNEL IN 1930'S; 80-FT ADIT, TOO. PROTECTION VEIN HAS BEEN FOLLOWED FOR 750 FT. ; INFO.SRC : GRANG

References

Reference (Deposit): EMMONS, W.H., 1910, A RECONNAISSANCE OF SOME MINING CAMPS IN ELKO, LANDER, AND EUREKA COUNTIES, NEVADA: U.S.G.S. BULL 408

Reference (Deposit): GRANGER, A. E. ETAL, 1957, GEOLOHY AND MINERAL RESOURCES OF ELKO COUNTY, NEVADA. NBM3 BULL 54.

Reference (Deposit): ROBERTS, R. T., RADTKE, A. S., AND R. R. CONTS, 1971, GOLD-BEARING DEPOSITS IN NORTH-CENTRAL NEVADA AND SOUTH WESTERN IDAHO; ECON. GEOL. VOL. 66 NO 1. P. 14-33.

Reference (Deposit): SMITH, R. M., 1976, MINERAL RESOURCES OF ELKO COUNTY, NEVADA USGS OPEN FILE REPT. 1976-56

Reference (Deposit): NOLAN, T.B. 1932B, THE MOUNTAIN CITY DISTRICT. NBMG OPEN FILE REPT.

Reference (Production): GRANGER, A. E. ETAL., 1957, P. 118

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.