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Location and Accessibility

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Title: Location and Accessibility


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Location and Accessibility
  • Property is located on the southern flank of the
    Copper Mountains in the Humboldt National Forest.
  • The mining claims are located in sections 13, 14,
    23 and 24 Township 44 North, range 57 East, Mt.
    Diablo base and Meridian.
  • The property may be reached by traveling north
    from Elko, Nevada on state highway 51/225 for a
    distance of 55 miles, then northeasterly on a
    gravel Road 27 miles to Charleston.

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Physiographic Features
  • Mining property is located in the transition area
    between the Great Basin Province and the Columbia
    Plateau Province.
  • The Jarbidge wilderness area lies to the
    northeast about 5 miles and Copper Mountain is
    about 4 miles to the north of the property.
  • Topography in the claimed area is gentle to
    moderate, elevations range from 6400 feet to 7300
    feet.

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Climate and Vegetation
  • The climate of the area is typical to the climate
    of the northern Great Basin Province.
  • Winters are severe and summers are mild to hot.
  • The average annual precipitation over the area
    varies from eight to 15 inches.
  • The natural vegetation in this area is sagebrush.
    A good variety of perennial grasses and browse
    cover most of the property.
  • Some woodland cover of aspen and willow are found
    along the streams and drainage ways that
    intersect the hillsides.

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History of the Mardis/Charleston Mining District
  • The first mineral deposits found in the district
    were placers, located chiefly on the west side of
    76 Creek about 4 miles above Charleston.
  • Placer deposits are located in Pennsylvania
    Gulch, Union Gulch, Dry Ravine, and Badger Creek.

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History of the Mining District (cont.)
  • There have been several lode deposits mined in
    the district.
  • The Graham Mine is about 4 miles north of
    Charleston. According to Schrader (1923) the
    mine contains 1600 feet of underground workings.
    The tunnel drift, 900 feet long, is on a vein
    which in 1914 was said to have contained an 18
    inch ore shoot of 16 per ton ore.

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History of the Mining District (cont.)
  • The Prunty Mine is about one third of a mile
    above the Graham mine.
  • It has been worked intermittently since 1905. The
    ore was treated in a hydraulic five stamp mill.
    The metals produced were silver, gold, copper and
    antimony.

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History of the Mining District (cont.)
  • The Black Warrior Mine is about one half mile
    north of the Prunty Mine at the head of a
    drainage from the west emptying into 76 Creek.
  • The mine is developed on a gossan formed along a
    contact between limestones, shales and
    granodiroite intrusives. Ores from the mine were
    reportedly processed in a small cyanidation mill.

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Geology
  • The property is underlain by three types of
    rock.
  • Oldest are the shales and limestones of Paleozoic
    age which have been metamorphosed into low-grade
    slates, hornfels and marbles respectively.
  • Next oldest are the granodioritic intrusives.
  • Youngest are the rhyolites which lie in fault
    contact with the intrusive and metamorphic units.

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Geology (cont.)
  • Sedimentary units seen on the property are
    referred to as shales and limestones instead of
    their actual metamorphic counterparts.
  • Shales and limestones are correlative to the
    Devonian and Pennsylvanian Pilot shale and
    Johanna limestone.
  • The Johanna limestone is the host rock in the
    Black Warrior Mine.

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Geology (cont.)
  • Igneous rocks. The granodiorite plug is the
    oldest igneous unit on the property and is
    probably Jurassic in age.
  • Volcanic rocks on the property are all of the
    Jarbidge rhyolite formation.
  • Geologic Map, next slide

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Structural Geology
  • The structures seen on the property appear to be
    expressions of two major structural trends in
    this part of Nevada.
  • Both trends are believed to be Precambrian or
    lowest Paleozoic origin.
  • The first and oldest set is the N 10 E to N 35 E
    set of faults and shears expressed locally in the
    structurally controlled drainages from 76 Creek
    to Copper Creek.
  • Most of the northeast trending drainages, faults
    and shears are sympathetic to the major
    structures in Copper Creek and 76 Creek.

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Exploration Activities
  • Twelve exploratory holes were drilled on the
    property for a total of 3400 linear feet.
  • Assay reports show that 7 of the 12 drill holes
    had anomalous gold values and 4 of the holes
    (drill holes 1, 2, 10 and 11) intersected
    mineable grade material.
  • Drill hole 1, at a depth of 129 to 130 feet,
    intersected ore assaying .038 ounces of gold per
    ton. The same hole, at a depth of 240 to 251
    feet, intersected ore assaying .015 ounces of
    gold per ton.

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Exploration Activities (cont.)
  • Drill hole 2 from 15 to 40 feet in depth
    intersected gold ore averaging .063 oz gold per
    ton. This hole at a depth of 160 to 165 feet
    intersected ore assaying .486 ounces gold per
    ton and at a depth of 165 to 170 feet intersected
    ore assaying .019 ounces gold per ton.
  • Drill hole 10 from 95 to 100 feet in depth
    intersected ore assaying .058 ounces gold per ton
    and from 115 feet to 120 feet in depth
    intersected ore assaying .061 ounces gold per ton.

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Exploration Activities (cont.)
  • Drill hole 11 intersected gold ore from 0 to 5
    feet assaying .840 ounces gold per ton and from 5
    to 15 feet intersected gold ore assaying an
    average of .054 ounces gold per ton.
  • Drill hole 11 from 95 to 140 feet in depth
    intersected gold ore averaging .031 ounces of
    gold per ton. Ninety five (95) feet was the
    beginning of a sulfide zone. The drill rig could
    not penetrate deeper than 140 feet because of
    excess water and heavy sulfides. This zone of
    sulfide mineralization is obviously the top of a
    gold copper skarn or the top of a copper porphyry
    deposit. Copper values in the zone from 115 feet
    to 140 feet in depth averaged .13.

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Exploration Activities (cont.)
  • Exploratory excavations were made by dozer
    equipment. Results of laboratory tests on
    samples taken from these excavations are shown in
    the following slide (table 1).
  • Locations of the excavations are shown on a
    topographic map following table 1.

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DRILL HOLE LOCATIONS
  • DRILL HOLE LOCATIONS SHOWN ON THE FOLLOWING
    TOPOGRAPHIC MAP

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Geochemical Sampling
  • Sample RP 2113, .018 oz per ton gold.
  • Sample DM 16, .065 oz. per ton gold.
  • Sample RP 2081, .083 oz. per ton gold.
  • Sample RP 2072, .029 oz. per ton gold.
  • Sample RP 2089, .013 oz. per ton gold.
  • Sample RP 2092, .046 oz. per ton gold.
  • Geochemical sampling of soils and rock chips were
    conducted on the property. Anomalous gold values
    were discovered in at least six samples.
  • See Following Slide for Geochemical Value Map

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Assay Companies Performing Chemical Analysis for
this Project
  • Rocky Mountain Geochemical Corp.
  • Salt Lake City, Utah.
  • Analytical Services
  • Elko, Nevada
  • Monitor Geochemical Laboratory
  • Elko, Nevada
  • The Assay Lab,
  • West Jordan, Utah

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Additional Exploratory Activities Needed to
Outline Reserves
  • It appears the northwest trending shear zones
    intersect a structure following Union Gulch in
    the vicinity of drill holes 1, 2, and 10.
    Additional drill holes up Union Gulch may reveal
    more mineable material.
  • More exploratory drill holes should be drilled in
    the vicinity of the Prunty and Slattery mines.
  • Drill holes where anomalous geochemical values
    were encountered will also be desirable.

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The Case for a Gold Copper Skarn at the Black
Warrior Mine
  • There is a good argument drill hole 11
    encountered a gold copper skarn at about 95 feet
    in depth. The gold values in the sulfide zone
    which average about .031 ounces gold per ton meet
    the criteria of at least 1 g au per ton (Theodore
    et al, 1991).
  • This value is probably low, because native gold
    associated with quartz particles probably could
    not be brought to the surface because of the high
    volume of water encountered and the drilling
    method used.

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Case for Gold Copper Skarn (cont.)
  • Copper values in the sulfide zone average .13
    at the Black Warrior Mine. The ratio of cu/au is
    1179. This ratio would be substantially
    different if native gold had been brought to the
    surface during drilling. Apparently, the gold
    values encountered involved small gold particles
    attached to the sulfides which were probably less
    than 40 microns in size.

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Case for Gold Copper Skarn (cont.)
  • Host rock at the Black Warrior Mine is the calcic
    Johanna limestone of Pennsylvanian age.
  • Granodiorite intrusive is probably of Jurassic
    age.
  • Geochemical signature, gold, copper, and arsenic
    are abundant.

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Exploration Activities to Delineate Extension of
Skarn
  • Airborne mapping method similar to that used at
    Yerington, Nevada to map the skarn
  • Magnetic and gravity surveys
  • Directional drilling
  • Extensive geologic mapping on the ground

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Roberts Mountain Thrust System
  • Thrust System is on our claims. Paleozoic
    sequence fits thrust pattern.
  • Guilmette formation and overlying pilot shale on
    the property typify formations associated with
    the thrust system.
  • Thrust system presents possible exploratory
    drilling targets in the upper or lower plates of
    the thrust.

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PROBABLE GOLD RESERVES
  • Conservative reserves 50,000 ounces
  • Based on drill hole analysis and geology
  • Realistic reserves 2,000,000 ounces Based
    on historic evidence of producing mines in the
    area, drill hole analysis and high values of
    arsenic (realgar and arsenopyrite) and antimony
    (stibnite) in vein systems, and free milling gold
    values.

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NEXT STEPS
  • Priorities
  • Develop Skarn Deposit
  • Additional Exploratory Drilling
  • Detailed Geologic Mapping
  • Questions/Discussion
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