Keynote Mine

The Keynote Mine is a gold, copper, and silver mine located in Inyo county, California at an elevation of 7,398 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: Keynote Mine
Secondary: Golden Princess
Secondary: War Eagle
Secondary: Keynot
Secondary: Mountain View
Secondary: Keynot Mine
Secondary: Mallard Duck

Commodity

Primary: Gold
Primary: Copper
Primary: Silver

Location

State: California
County: Inyo
District: Beveridge

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

Type: Private Lease
Type: Located Claim

Workings

Type: Underground

Ownership

Owner Name: Douglas D. Mcfarland,
Home Office: Bishop, Ca.
Info Year: 1984

Owner Name: Far West Exploration
Percent: 100.0
Info Year: 1983

Production

Year: 1938
Description: Total Gold Ore Produced Up To This Year 500000 Dollars Of Gold Ore

Deposit

Record Type: Site
Operation Category: Plant
Plant Type: Beneficiation (Mill)
Plant Subtype: Hydromet
Operation Type: Underground
Mining Method: Unknown
Year First Production: 1878
Discovery Year: 1878
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

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Unknown: Silver
Unknown: Gold
Unknown: Chalcopyrite

Comments

Comment (Geology): THE ORE FROM THE KEYNOT VEINS CONSIST PRIMARILY OF FINE- GRAINED FREE GOLD INTIMATELY ASSOCIATED WITH CHALCOPYRITE AND PYRITE. WHEN VISABLE, THE GOLD TYPICALLY OCCURS AS "NUGGETS", USUALLY LESS THAN 3 MM ACROSS; BORDERING, AND AS INCLUSIONS WITHIN, CHALCOPYRITE AND PYRITE CRYSTALS. IN ONE LOCATION UNDERGROUND, CRYSTALLINE GOLD FOLLOWING FRACTURES IN THE QUARTZ WAS OBSERVED. ACCESSORY ORE MINERALS CONSIST OF SILVER, PROBABLY ASSOCIATED WITH GALENA, AND MINOR SPHALERITE, MALACHITE, AND AZURITE. GANGUE MINERALS CONSITS OF QUARTZ, SERICITE, KA0- LINITE, PYRITE, AND ARSENOPYRITE. SULFIDE MINERALIZATION IS LOCALIZED, SEPARATED BY ZONES OF BARREN OR NEARLY BARREN BULL QUARTZ.

Comment (Production): DAILY PRODUCTION FROM 225 MT OF DUMP ORE WILL BE 1296 G GOLD AND 2086 G SILVER. DAILY PRODUCTION FROM 100 MT OF MINE ORE WILL BE 1225 G GOLD 1584 G SILVER, AND 1.68 MT OF 10% COPPER CONCENTRATE.

Comment (Reserve-Resource): M1C1=N/CUM (MATRIX ONE COLUMN ONE IS NONCUMULATIVE). MATRIX ONE CONTAINS THE INDICATED ORE FROM THE MINE DUMP. M2C1=M2C2

Comment (Geology): THE KEYNOT VEIN SYSTEM OCCURS AS FISSURE FILLINGS IN THE JURASSIC-TRIASSIC PAT KEYS PLUTON OF THE HUNTER MOUNTAIN QUARTZ MONZONITE. THE KEYNOT VEIN SYSTEM IS COMPOSED OF FOUR MAJOR VEINS WHICH STRIKE N 40-70 W AND DIP 25-55 SW. THE KEYNOT VEIN HAS A SURFACE LENGTH OF 1980 M AND AVERAGE VEIN THICKNES OF 0.6 M. THE WAREAGLE IS EXPOSED FOR 1500 M, AVERAGING 1 M THICK, EAST VEIN IS 500 M LONG AND 0.6 M THICK, AND WEST VEIN IS 1000 M LONG AND 0.5 M THICK.

References

Reference (Deposit): MCFARLAND, D.S., (1980) KEYNOT MINE PROJECT, GEOLOGIC REPORT

Reference (Deposit): U. 34, NO. 4, PP. 404-405.

Reference (Deposit): OF INYO CO., CALIF.: CALIF. JOUR. OF MINES & GEOLOGY,

Reference (Deposit): TUCKER, W. B., AND SAMPSON, R. J., (1928) MINERAL RESOURCES

Reference (Deposit): STATE MINERALOGIST'S REPORT P. 99.

Reference (Deposit): THE UNITED STATES FOR THE CALENDAR YEAR 1888-89: CALIF

Reference (Deposit): TUCKER, W. B., (1926) THE PRODUCTION OF PRECIOUS METALS IN

Reference (Deposit): USGS MAP CQ-612.

Reference (Deposit): ROSS, DONALD C., (1967) GEOLOGIC MAP OF THE WACOUBA QUAD:

Reference (Deposit): MTNS REGION, CALIFORNIA: USGS MAP I-506.

Reference (Deposit): ROSS, DONALD C., (1967) GENERALIZED GEOLOGIC MAP OF THE INYO

Reference (Deposit): STATES FOR THE CALENDAR YEAR 1889-1890, P. 99.

Reference (Deposit): UPON THE PRODUCTION OF PRECIOUS METALS IN THE UNITED

Reference (Deposit): CRAWFORD, J. S., (1896) ANNUAL REPORT: CALIF. STATE MINER-

Reference (Deposit): V. 12, P. 138.

Reference (Deposit): CRAWFORD, J. S., (1896) CALIF. STATE MINERALOGIST'S REPORT,

Reference (Deposit): ALOGIST'S REPORT, V. 13, P. 181.

Reference (Deposit): LEECH, EDWARD O., (1890) REPORT OF THE DIRECTOR OF THE MINT

Reference (Deposit): KNOPF, ADOLF, (1912) USGS BULL. 5401 PP. 111-112.

Reference (Deposit): COMPANY REPORT, UNPUBLISHED.

Reference (Deposit): SECTION ON STRATIGRAPHY OF THE INYO RANGE: USGS PP. 110.

Reference (Deposit): SANCE OF THE SOUTHERN SIERRA NEVADA, CALIFORNIA, WITH A

Reference (Deposit): KNOPF, ADOLF, AND KIRK, EDWIN, (1918) A GEOLOGIC RECONNAIS-

Reference (Deposit): NORTHWESTERN UNIVERSITY, EVANSTON, IL.

Reference (Deposit): DISTRICT, CALIFORNIA: UNPUBLISHED MASTER'S THESIS,

Reference (Deposit): FLINT, DELOS E., (1941) THE GEOLOGY OF THE BEVERIDGE MINING

Reference (Deposit): STATES FOR THE CALENDAR YEAR 1884-85, P. 101.

Reference (Deposit): BURCHARD, HORATIO C., (1885) REPORT OF THE DIRECTOR OF THE

Reference (Deposit): STATES FOR THE CALENDAR YEAR 1882-83, P.159.

Reference (Deposit): BURCHARD, HORATIO C., (1883) REPORT OF THE DIRECTOR OF THE

Reference (Deposit): STATES FOR THE CALENDAR YEAR 1880-81, P. 39

Reference (Deposit): MINT UPON THE PRODUCTION OF PRECIOUS METALS IN THE UNITED

Reference (Deposit): BURCHARD, HORATIO C., (1881) REPORT OF THE DIRECTOR OF THE

Reference (Deposit): U. S. BUREAU OF MINES OPNE-FILE REPORT MLA 18-85, 1985.

Reference (Reference): USGS TOPOGRAPHIC MAP NEW YORK BUTTE, INYO CO., CA. 1950.

Reference (Reference): CALIFORNIA STATE MINERALOGIST REPORT, VOL. 12, P. 138.

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.