Pinson Mine

The Pinson Mine is a gold mine located in Humboldt county, Nevada at an elevation of 5,449 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: Pinson Mine
Secondary: Ogee Pinson Mini

Commodity

Primary: Gold
Tertiary: Tungsten

Location

State: Nevada
County: Humboldt
District: Potosi 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

Not available

Ownership

Owner Name: Pinson Mining Co., H. Dan Harper, General Manager
Home Office: P. O. Box 192, Winnemucca, Nv 89445
Years: 1983 -

Production

Year: 1949
Time Period: 1949
Material type: ORE
Description: Cp_Grade: ^0.186 Oz/Ton Au

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1949
Discovery Year: 1945
Discovery Method: Ore-Mineral In Place
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: Carbonate-hosted Au-Ag

Orebody

Form: IRREGULAR IN FAULT ZONE

Structure

Not available

Alterations

Not available

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Ordovician

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Ordovician

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

Analytical Data

Analytical Data: SURFACE GEOCHEMICAL SAMPLING SHOWED AN ASSOCIATION OF ANOMALOUS HG, AS, SB, AS WELL AS F AND BA WITH GOLD MINERALIZATION, AS IS TYPICAL OF MOST CARLIN-TYPE DEPOSITS.

Materials

Ore: Gold
Gangue: Fluorite
Gangue: Cordierite

Comments

Comment (Development): NEW PINSON DEPOSIT DESCOVERED IN 1971 BY LIVERMORE AND GALLI. KNOWN RESERVES (1979)=1.5 MILLION TONS PLUS MORE LOWGRADE OR. OWNED AND OPERATED IN 1981 BY CORDILLERAN EXPLORATION (CORDEX). LISTED AS AN ACTIVE OPEN PIT MINE AND MILL WITH CYANIDATION OPERATION IN 1983, EMPLOYING A TOTAL OF 130 PERSONS.. OWNED AND OPERATED IN 1981 BY CORDILLERAN EXPLORATION (CORDEX). LISTED AS AN ACTIVE OPEN PIT MINE AND MILL WITH CYANIDATION OPERATION IN 1983, EMPLOYING A TOTAL OF 130 PERSONS.

Comment (Deposit): A 1984 REPORT DESCRIBES THE DEPOSIT: THE PINSON "A" ZONE IS 1000 FT LONG BY 60 FT THICK CONTAINING 1500000 TONS OF ORE AVERAGING 0.18 OZ/T AU, COVERED BY 10-50 FT OF ALLUVIUM. FURTHER DRILLING INDICATED 1700000 TONS AVERAGING 0.15 OZ/T AU PLUS AN ADDITIONAL TONNAGE OF LOW-GRADE IN THE B ZONE IN THE VICINITY OF THE OLD PIT. A MAJOR NE-STRIKING FAULT ZONE 50-70 FT WIDE, DIPPING 40-50 SE CONTROLS GOLD MINERALIZATION. IT HAS BEEN TRACED BY DRILLING FOR 8000 FT. THE "A" OREBODY IS LOCALIZED BY THIS SHEAR ZONE WHERE IT COINCIDES WITH THE CONTACT BETWEEN THE PREBLE AND COMUS FORMATIONS. IT CONSISTS OF FINE DISSEMINATIONS IN JASPEROID.

Comment (Geology): GEOL.COM: IRREGULAR ZONES OF LOW-GRADE GOLD ORE ALONG BEDDING PLANES AND MINOR FRACTURES IN ARGILLITE IN FOOTWALK . A CONSPICUOUS CONTACT METAMORPHIC AUREOLE SURROUNDS THE GRANODIORITE STOCK, EXTENDING IRREGULARLY UP TO 10000 FT OUT FROM THE MARGINS OF THE INTRUSIVE. A NUMBER OF TUNGSTEN-BEARING TACTITE DEPOSITS RIM THE GRANODIORITE, FORMING WHEREVER A CALCAREOUS BED WAS PRESENT WITHIN THE CONTACT ZONE. THE PINSON MINE ALSO LIES WITHIN THIS CONTACT AUREOLE, WITH GRANODIORITE OUTCROPPING 1200 FT N OF THE MINE.. A CONSPICUOUS CONTACT METAMORPHIC AUREOLE SURROUNDS THE GRANODIORITE STOCK, EXTENDING IRREGULARLY UP TO 10000 FT OUT FROM THE MARGINS OF THE INTRUSIVE. A NUMBER OF TUNGSTEN-BEARING TACTITE DEPOSITS RIM THE GRANODIORITE, FORMING WHEREVER A CALCAREOUS BED WAS PRESENT WITHIN THE CONTACT ZONE. THE PINSON MINE ALSO LIES WITHIN THIS CONTACT AUREOLE, WITH GRANODIORITE OUTCROPPING 1200 FT N OF THE MINE.

Comment (Deposit): ORIGINAL CLAIMS STAKED BY CLOVIS PINSON IN 1945, HELD IN FAMILY THROUGH 1979. MINED IN 1949 BY OPEN PIT METHODS. THE PINSON DEPOSTI WAS DISCOVERED ON LEASED CLAIMS IN 1971 BY LIVERMORE AND GALLI. (CORDEX). THE PINSON WAS TO BE PUT IN PRODUCTION IN 1980 THE PROJECT CONSISTING OF AN OPEN PIT MINE, AND CONVENTIONAL GOLD MILL WHICH WILL PROCESS APPROX. 300,000 TONS ORE PER YEAR. PRESENT (1979) KNOWN RESERVES OF MEDIUM GRADE ORE ARE SUFFICENT FOR FIVE YEARS' OPERATIONS, WITH ADDITIONAL RESERVES OF LOW-GRADE TO EXTEND MINE LIFE TO 10 YR OR MORE IN 1980, WORK WAS BEING DONE ON A HEAD. LEACH OPERATION WHICH WOULD RECOVER GOLD FROM 3,000, 000 TONS ORE TO A LOW-GRADE FOR MILLING. LISTED AS AN ACTIVE OPEN PIT MINE AND CYANIDIZATION PLANT IN 1980, EMPLOYING ABOUT 80 PERSONS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Comment (Location): N 1/2 SEC. 32; S. SIDE OF GRANITE CREEK

Comment (Production): 1949 PRODUCTION=4150 TONS ORE AT 0.186 OZ/TON, BUT RECENT PRODUCTION IS UNKNOWN.

Comment (Reserve-Resource): MINE WAS REPORTED IN 1987 TO BE MINING 13000 TPD, EMPLOYING 140 PEOPLE IN ALL OPERATIONS WITH TOTAL OF 56,000 OZ AU PRODUCED EACH YEAR.

References

Reference (Deposit): NEVADA DIVISION OF MINERALS, 1994

Reference (Production): HOTZ, P.E. AND WILLDEN, 1964 MI-1993

Reference (Reserve-Resource): GEOL. SOC. NEV., 1987 PRECIOUS METALS SYMPOSIUM. MI-1993

Reference (Deposit): BONHAM, H.F., 1988, IN NBMG MI-1987.

Reference (Deposit): NBMG, 1994, MI-1993

Reference (Deposit): HOTZ, P.E., AND WILLDEN, R., 1964, GEOLOGY AND MINERAL DEPOSITS OF THE OSGOOD MOUNTAINS QUADRANGLE HUMBOLDT COUNTY, NEV; U.S.G.S. PROF. PAPER 431.

Reference (Deposit): NEV. MINING ASSOC. BULL., SEPT. 1979; "CONSORTIUM BUDGETS $14 MILLION TO OPEN PINSON GOLD MINE."

Reference (Deposit): THE NORTHERN MINER NEWSPAPER, 1980 (NOV.20), RAYROCK PREPARES PINSON FOR JANUARY SET-UP.

Reference (Deposit): NVEADA STATE INSPECTOR OF MINES, 1981, DIRECTORY OF NEVADA MINE OPERATIONS ACTIVE DURIN 1980.

Reference (Deposit): POWERS, S.L., 1978, MS THESIS, UNR, RENO, NV.

Reference (Deposit): GEOLOGIC SOCIETY OF NEVADA, 1984 MEETING AND FIELD TRIP ROAD LOG PINSON MINE, FLORIDA CANYON DEPOSIT, ROCHESTER DISTRICT, RELIEF CANYON DEPOSIT, SEPT. 21023, 1984. (CONTAINS NUMEROUS OTHER UNPUBLISHED REFERENCES)

Reference (Deposit): BONHAM, H.F., 1986, NBMG MAP 91.

Reference (Deposit): WILLDEN, R., 1964, GEOLOGY AND MINERAL DEPOSITS OF HUMBOLDT COUNTY, NEV; NEV. BUREAU OF MINES BULL. 59.

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.