Nevada Crown Shafts

The Nevada Crown Shafts is a gold and silver mine located in Churchill county, Nevada at an elevation of 5,640 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: Nevada Crown Shafts
Secondary: NBMG Sample Sites 3974, 3975
Secondary: Rex Claims #Nc1 & 2
Secondary: Earlier Nevada Crown Claims

Commodity

Primary: Gold
Primary: Silver
Tertiary: Lead
Tertiary: Zinc
Tertiary: Molybdenum

Location

State: Nevada
County: Churchill
District: Fairview 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: Underground

Ownership

Owner Name: Spectrum Exploration, Le Roi Spriggs
Home Office: Hawthorne, NV
Years: 1986 -

Production

Not available

Deposit

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

Physiography

Not available

Mineral Deposit Model

Model Name: Epithermal vein, Comstock

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

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

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

Analytical Data

Analytical Data: SAMPLE 3974 FROM DUMP AND SHEAR ZONE OF LARGER (SOUTHERN) SHAFT CONTAINS 0.7% FE, 0.15% MG, 0.07% TI, 70 PPM MN, 1.5 PPM AG, 150 PPM BA, 30 PPM CU, 20 PPM PB, 15 PPM V, 15 PPM Y, 150 PPM ZR. SAMPLE 3975 FROM DUMP OF SMALLER (NORTHERN) SHAFT CONTAINS 2% FE, 0.07% MG, 0.03% TI, 70 PPM MN, 15 PPM AG, 200 PPM BA, 30 PPM CU, 150 PPM MO, 5 PPM NI, 200 PPM PB, 20 PPM V, 300 PPM ZN, 30 PPM ZR AND 1.1 PPM AU (BY AA ANALYSIS)

Materials

Ore: Gold
Gangue: Pyrite
Gangue: Quartz

Comments

Comment (Workings): 2 SHAFTS, ONE REPORTEDLY 250 FT DEEP WITH A LARGE DUMP, SUGGESTING POSSIBLE DRIFTS OR OTHER WORKINGS OFF THE SHAFT; SMALLER SHAFT 400 FT NORTH

Comment (Location): 2000 FT NE OF THE MAIN NEVADA CROWN ADIT. UTM IS FOR MAIN SOUTHERLY SHAFT. SAMPLE SITE 3975, SMALLER EXPLORATORY SHAFT HAS UTM N4334680 E398010. ; INFO FROM LAND.ST :(1972)

Comment (Development): WORKINGS DATE FROM 1906-1912 PERIOD. RECENT (1986) SAMPLING AND STAKING BY SPECTRUM EXPLORATION OF HAWTHORNE, NV AND SAMPLING BY TENNECO/ECHO-BAY

Comment (Deposit): LARGER SOUTHERN SHAFT SUNK WAS SUNK ON INTERCEPT OF THE N-S SHEAR (VISIBLE ALONG EAST SIDE OF THE CANYON, AND THE LARGE N 70 W VEIN AT LEAST 20 FT THICK. ALL WORKINGS ARE IN ANDESITE. SHAFT IS ON EASTERN EDGE OF THE CANYON AND DUMP MATERIAL DOES NOT CONTAIN SIGNIFICANT VISIBLE MINERALIZATION. SAMPLE 3974 INCLUDES BOTH DUMP MATERIAL AND SHEAR ZONE MATERIAL WHICH INCLUDES BRECCIA, VUGGY OPEN-SPACE QUARTZ WITH SOME PYRITE. SECOND SMALLER SHAFT TO NORTH WAS SUNK ON A NE-TRENDING QUARTZ VEIN NEAR A N-S SHEAR. ONE VEIN TRENDS N 05 E, 70 E, INTERCEPTING A N 65 W VERTICAL VEIN 6-10 FT WIDE. VEIN MATERIAL CONSISTS OF SULFIDES WITH PYRITE IN MATRIX OF AN ANDESITE BRECCIA.

References

Reference (Deposit): QUADE, JACK AND TINGLEY, J.V., 18 OCT 86, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS

Reference (Deposit): USDI, BLM MINING CLAIM RECORDS AND FILES

Reference (Deposit): NBMG BULL 83, 1974,

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.