Standard Hill

The Standard Hill is a gold and silver mine located in Mono county, California at an elevation of 8,376 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: Standard Hill

Commodity

Primary: Gold
Primary: Silver

Location

State: California
County: Mono
District: Bodie

Land Status

Not available

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Owner Name: J. S. Cain Co.

Production

Year: 1947
Time Period: 1907 - 1947
Material type: ORE
Description: Cp_Grade: ^Yield 1,500,000 Oz. Fine Au And 5,000,000 Oz. Ag From Bonanza Zone.

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1860
Discovery Year: 1860
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: TRUNCATED WEDGE, PARALLEL VEINS, SEAMS

Structure

Type: R
Description: West Side Of Sierra Nevada Mts. Major Nw - Trending Faults.

Type: L
Description: Moyle Fault Cuts Bonanza Ore Body On Western Limits.

Alterations

Alteration Type: L
Alteration Text: Alteration Of "Red Dikes" To Clay

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Jurassic

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

Analytical Data

Not available

Materials

Ore: Gold
Gangue: Quartz
Gangue: Talc
Gangue: Sericite

Comments

Comment (Production): ORE WAS TREATED BY SIMPLE CYANIDATION, FREE - MILLING, LARGE AMOUNT OF AU WAS FREE & RECOV. BY AMALGAMATION. TOTAL PRODUCTION FOR BONANZA ZONE THRU 1947 WAS 1.25 - 1.5 MILLION OZ. AU AND 5 - 10 MILLION OZ. AG.

Comment (Deposit): 19 PATENTED CLAIMS, 11 UNPATENTED LODE LOCATIONS, 4 MILL SITES AND SPRINGS, APPROXIMATING 1000 ACRES. ALL OF THE INFORMATION IN THIS REPORT IS FROM MCCLUSKEY'S UNPUBLISHED REPORT. NUMEROUS OTHER PUBLISHED REPORTS ON THE BODIE DISTRICT AND STANDARD HILL EXIST AND ARE REFERENCED UNDER INDIVIDUAL MINE REPORTS IN THE DISTRICT.

Comment (Deposit): NUMEROUS ZONES OF ENRICHMENT. (1) BONANZA ZONE, LARGEST OF THESE, CONTAINS NUMEROUS REPORTED UNMINED STRINGERS OF HIGH GRADE. (2) CONTIGUOUS EASTERN LATERAL ZONE (HARRINGTON PORTAL AREA), (3) THE WESTERN LATERAL ZONES (CON. PACIFIC - BULWAR - FORTUNA AREAS) ALL ON THE STANDARD HILL AND (4) THE NORTHERLY EXTENSIONS OF THE BONANZA VEINS THRU TIOGA - BECHTOF - HOBART CLAIMS ON THE SW FLANK OF BODIE BLUFF.

Comment (Location): GENERALIZED UTM COORDINATES FOR GROSS DISTRICT INFO.

Comment (Reserve-Resource): POTENTIAL TONNAGE AND ASSAY AVG. PREPARED BY TRANDWELL - YUKON CORP. FOR BONANZA ZONE, EASTERN MARGINAL ZONE, WESTERN MARGINAL ZONE, NORTHERN MARGINAL ZONE, EASTERN SUB - MARGINAL AND WESTERN SUB - MARGINAL ZONES, RESPECTIVELY. METALS IN THESE ORES OCCUR IN MEAN RATIO OF 1 FINE OZ. AU TO 15 OZ. AG. NUMEROUS OTHER PROJECTED ASSAYS HAVE BEEN MADE FOR INDIVIDUAL MINES AND PORTIONS OF THE MINES.

Comment (Reserve-Resource): VALUES FOR CON. PACIFIC TUNNEL, EXT., WESTERN MARGINAL BLOCK, STANDARD HILL AND S BODIE BLUFF, SECTION OF WESTERN MARGINAL ZONE, AND BLOCK OF ORE ADJACENT TO CON. PACIFIC TUNNEL. NUMEROUS OTHER VALUES OF RESERVE PROJECTIONS EXIST.

Comment (Development): TOTAL$: 218600 ; EXPL$: 75000 ; DEV$: 68500 ; MILL$: 20800 ; MILL.CAP: 166 ; ECON.YEAR: 1947 ; ECON.COM: ABOVE FACTORS BASED ON PROJECTED ESTIMATES.

Comment (Workings): NUMEROUS SHAFTS, ADITS; CROSSCUTS, WINZES AND STOPES ON MANY LEVELS. PROPOSED DIAMOND DRILLING (CORE VS - SLUDGE), MOIL CUT CHANNELS AND BULK EXCAVATION. STANDARD MILLING PLANT AND SEVERAL OTHERS EXIST ON STANDARD HILL. OPEN - CUTS & TRENCHING.

Comment (Geology): NARROW, BARREN CLAY SEAMS COMMON. 5 DISTINCT PERIODS OF DEFORMATION HAVE BEEN RECOGNIZED IN THE BONANZA ZONE, CHARACTERIZED BY INTRUSION, FAULTING OR FISSURING AND 5 DISTINCT PERIODS OF QUARTZ - VEIN FORMATION, 3 OF WHICH ARE ORE - BEARING.

References

Reference (Deposit): MCCLUSKEY, S. B., 1947 , SURVEY OF BODIE PROJECT/SUMMARY OF STATISTICAL RECORDS AND ESTIMATES, METALLURGICAL ENGINEER, UNPUB. DATA

Reference (Reserve-Resource): MCCLUSKY ( 1947 )

California Gold

"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.