Kramer Hill Mine

The Kramer Hill Mine is a gold and silver mine located in Humboldt county, Nevada at an elevation of 5,121 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: Kramer Hill Mine
Secondary: Golconda Gold Ledge Mining Co.

Commodity

Primary: Gold
Primary: Silver

Location

State: Nevada
County: Humboldt
District: Golconda 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: Surface/Underground

Ownership

Owner Name: Pinson Mining Co.

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1908
Discovery Year: 1907
Discovery Method: 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: Distal disseminated Ag-Au

Orebody

Form: TABULAR

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Silicification And Argillization. Both The Fault And Hanging Wall Fracture Zone Are Silicified. The Shaley Rocks Of The Hanging Wall Fracture Zone Are Strongly Argillized. The Clays Produced By Argillization Are Kaolinite, Dickite, Illite(?), And An Unidentified Expanding Variety.

Rocks

Name: Quartzite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cambrian

Name: Quartzite
Role: Host
Age Type: Host Rock
Age Young: Late Cambrian

Analytical Data

Not available

Materials

Gangue: Pyrite

Comments

Comment (Commodity): A SCANNING ELECTRON MICROPROBE ANALYSIS OF VEIN MATERIAL REVEALS THE PRESENCE OF PYRITE, ARSENIC-BEARING PYRITE, ARSENOPYRITE, GALENA, SPHALERITE, CHALCOPYRITE, A LEAD ANTIMONY SULFIDE, AND CINNABAR. ALSO OBSERVED IN THE SEM ANALYSIS WAS A 25 MICRON GRAIN OF GOLD OCCURRING IN AN IRON OXIDE FILLED FRACTURE IN PYRITE.

Comment (Location): W. SLOPE KRAMER HILL

Comment (Production): AT THE OFFICIAL GOLD PROCE OF $20.63/OZ. IN THE EARLY 1900'S, HISTORIC PRODUCTION WOULD BE APPROXIMATELY 4500 0Z. AT A GRADE OF 0.15 OPT GOLD.

Comment (Development): EIGHT CLAIMS WERE STAKED ON THE PROPERTY IN 1907 BY L.K. KRAMER. TWO CLAIMS WERE PATENTED IN 1909 BY THE GOLCONDA LEDGE MINING CO. ORE WAS PRODUCED FROM UNDERGROUND WORKINGS AND PROCESSED IN GOLCONDA, AND LATER, A 20 STAMP MILL WAS CONSTRUCTED ON THE SITE. APPROXIMATELY 25,000-30,000 TONS OF ORE WERE PROCESSED. WORK BY CORDEX IN THE EARLY 1970'S CONSISTED OF GEOLOGIC MAPPING, UNDERGROUND CHIP AND CHANNEL SAMPLING, BULLDOZER TRENCHING, AND THREE DRILL PROGRAMS TOTALLING 18 ROTARY PERCUSSION HOLES. CORDEX IDENTIFIED A MODEST TONNAGE OF 0.19 OPT GOLD ALONG THE MAIN VEIN. LOWER GRADE DISSEMINATED ORE WAS NOT ATTRACTIVE AT THIS TIME AND THE PROPERTY WAS DROPPED. THE PROPERTY WAS REACQUIRED BY PINSON MINING CO. IN 1986. A PROGRAM TO DEVELOP THE LOWER GRADE DISSEMINATED ORE WAS THEN INITIATED.

Comment (Deposit): ; MODEL NAME COULD ALSO BE: SEDIMENT-HOSTED AU.

Comment (Workings): THE HISTORIC UNDERGROUND WORKINGS CONSISTED OF TWO MAIN ADIT LEVELS THAT CONNECT WITH A 220 FT. DEEP MAIN SHAFT. THERE ARE DEVELOPMENT WORKINGS ALONG THREE LEVELS WITH SUBSIDIARY EXPLORATORY HEADINGS, WINZES, AND ORE PASSES.

Comment (Geology): KRETSCHMER NOTES THAT THE STYLE OF MINERALIZATION IS SOMETHING LIKE A HYBRID BETWEEN AN EPITHERMAL VEIN AND A CARLIN-TYPE DEPOSIT. THIS DEPOSIT DOES NOT FIT PARTICULARLY WELL INTO ANY OF THE USGS MODEL CATEGORIES, BUT SEEMS TO BE CLOSEST TO #26A.

References

Reference (Deposit): KRETSCHMER, E.L., 1991, GEOLOGY OF THE KRAMER HILL GOLD DEPOSIT, HUMBOLDT COUNTY, NEVADA, IN RAINES, G.L., ET AL, EDS., GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN, THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 857-863.

Reference (Production): PIERCE, C.A. (NO DATE); VANDERBURG, W.O., 1938 KRETSCHMER, E.L., 1991, GEOLOGY OF THE KRAMER HILL GOLD DEPOSIT, HUMBOLDT COUNTY, NEVADA, IN RAINES, G.L., ET AL, EDS., GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN, THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 857-863.

Reference (Deposit): PIERCE, C.A. (NO DATE), PRIVATE REPORT, NBMG FILES (128,ITEM 2)

Reference (Deposit): VANDERBURG, W.O., 1938, RECONNAISSANCE OF MINING DISTRICTS IN HUMBOLDT CO., NEV: USBM I.C.6995

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.