The Lone Tree Mine is a gold mine located in Humboldt county, Nevada at an elevation of 4,551 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
Elevation: 4,551 Feet (1,387 Meters)
Commodity: Gold
Lat, Long: 40.83361, -117.20972
Map: View on Google Maps
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.
Lone Tree Mine MRDS details
Site Name
Primary: Lone Tree Mine
Secondary: Wayne Zone
Commodity
Primary: Gold
Secondary: Silver
Tertiary: Arsenic
Tertiary: Mercury
Tertiary: Copper
Tertiary: Antimony
Location
State: Nevada
County: Humboldt
District: Battle Mountain
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Santa Fe Pacific Mining
Owner Name: Lone Tree Mining, Inc.
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1991
Discovery Year: 1989
Years of Production:
Organization:
Significant: N
Deposit Size: M
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
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Silicification, Argillization, Pyritization.
Rocks
Name: Mafic Intrusive Rock
Role: Associated
Age Type: Associated Rock
Age Young: Eocene
Name: Mafic Intrusive Rock
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene
Analytical Data
Analytical Data: TRACE ELEMENTS LINKED TO AU INCLUDE AS, SB, AND HG. MINOR AG HAS BEEN NOTED LOCALLY IN THE DEPOSIT.
Materials
Ore: Pyrite
Gangue: Marcasite
Gangue: Chalcopyrite
Comments
Comment (Development): DRILLING AT LONE TREE WAS CONDUCTED NEAR THE COMPLETION OF A MUCH LARGER DRILLING PROGRAM IN THE SOUTH VALMY AREA. HOLES AT LONE TREE WERE SITED IN PART ON DRILLING RESULTS AT THE STONEHOUSE DEPOSIT IMMEDIATELY TO THE SOUTH AND IN PART ON GEOLOGIC FACTORS CONSIDERED SINCE 1987. THE DISCOVERY HOLE, TH-79, WAS DRILLED IN JULY, 1989. IT INTERSECTED 35 FT. GRADING 0.12 OPT AU STARTING AT A DEPTH OF 140 FT. A FOLLOW-UP REVERSE CIRCULATION DRILLING PROGRAM OF 10 HOLES WAS BEGUN IN AUGUST, 1989. THESE WERE ANGLE HOLES DRILLED MAINLY AS EAST-WEST FENCES IN THE VICINITY OF TH-79. OF THESE 10 HOLES, ONLY 1 FAILED TO INTERSECT SIGNIFICANT AU MINERALIZATION. BY DECEMBER, 1989, THE KNOWN STRIKE LENGTH OF THE AU-BEARING STRUCTURE EXTENDED NEARLY 0.5 MILE ON SANTA FE PACIFIC PROPERTY. AN ACCELERATED DRILLING PROGRAM BEGINNING IN JANUARY, 1990, USED AS MANY AS 17 DRILL RIGS SIMULTANEOUSLY. THE GOAL WAS TO DELINEATE AN OXIDE RESOURCE BY JUNE, 1990. THE PRESENCE OF POWER LINES ON THE PROPERTY WAS A
Comment (Reserve-Resource): 1992 FIGURES ARE EXCLUSIVE OF STONEHOUSE RESERVES AND WERE CALCULATED USING A STRIP RATIO OF 8.82:1.
Comment (Commodity): IN SULFIDE ORE, AU IS ASSOCIATED MAINLY WITH ARSENOPYRITE AND TO A LESSER EXTENT WITH ONE OR TWO GENERATIONS OF PYRITE.
Comment (Production): PRODUCTION FORECAST FOR 1992 IS 103,000 OZ. AU.
Comment (Development): HINDRANCE TO THE SITING OF THE DRILL HOLES. PRIOR TO MINE DEVELOPMENT, THESE POWER LINES WERE MOVED AT A COST OF $4 MILLION. THE PRODUCTION DECISION WAS MADE MAY, 1990, CONSTRUCTION BEGAN IN DECEMBER, 1990, FULL SCALE MINING BEGAN APRIL, 1991, AND THE FIRST DORE WAS POURED AUGUST, 1991. OVER 400 DRILL HOLES HAD BEEN COMPLETED AT LONE TREE AS OF APRIL, 1992. ; ECON.COM: PROJECT CAPITAL COST WAS $52.9 MILLION, EXCLUDING INITIAL EXPLORATION. CASH COSTS IN 1991 WERE $103.45/OZ. AU. A MILL EQUIPPED WITH A LOW TEMPERATURE, LOW PRESSURE AUTOCLAVE TO TREAT SULFIDE ORE IS SCHEDULED TO BE BUILT IN 1994 AT AN ESTIMATED COST OF $67 MILLION.
Comment (Deposit): OVERBURDEN RANGES 1 FT. TO 200 FT.
Comment (Workings): THE PROJECT AREA INCORPORATES ALL OR PART OF FOUR SECTIONS WHICH ARE 100% OWNED BY LONE TREE MINING, INC., A SUBSIDIARY OF SANTA FE PACIFIC MINERALS. ORE IS SEGREGATED INTO OXIDE HEAP LEACH, SULFIDE MILL, AND RUN-OF-MINE HEAP LEACH. CONVENTIONAL HEAP LEACHING METHODS ARE UTILIZED TO RECOVER UP TO 90% OF THE GOLD IN THE OXIDE HEAP LEACH ORE. RUN-OF-MINE HEAP LEACH RECOVERY IS ONLY EXPECTED TO BE 40%, BUT THE LOW COST OF THIS PROCESS ALLOWS TREATMENT OF THE LOWER GRADE ORE AT A PROFIT. SULFIDE ORE IS BEING STOCKPILED. EXPECTED MINE LIFE IN 1992 WAS 12 YEARS.
References
Reference (Deposit): THE MINING RECORD, AUG 4,1993
Reference (Production): BRAGINTON, B., 1992, LONE TREE MINE, ORAL PRESENTATION AT APRIL 17, 1992 MEETING OF THE GEOLOGICAL SOCIETY OF NEVADA. NBMG MI-1993
Reference (Reserve-Resource): NBMG MI-1993
Reference (Deposit): BRAGINTON, B., 1992, LONE TREE MINE, ABSTRACT IN APRIL, 1992 GEOLOGICAL SOCIETY OF NEVADA NEWSLETTER.
Reference (Deposit): BRAGINTON, B., 1992, LONE TREE MINE, ORAL PRESENTATION AT APRIL 17, 1992 MEETING OF THE GEOLOGICAL SOCIETY OF NEVADA.
Reference (Deposit): MINING JOURNAL/MONTAGU MINING FINANCE, MINING DATABASE, 8/10/91.
Reference (Deposit): NBMG, 1994, MI-1993
Reference (Deposit): NEVADA DIVISION OF MINERALS, 1994
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.
