Announces Filing of Technical Report on the Unga Project
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Redstar Gold Corp.
Announces Filing of Technical Report on the Unga Project
HIGHLIGHTS:
• Unga has more than 25 areas showing precious, base metal and porphyry copper-gold mineralization.
• The Shumagin vein system extends along strike for 1.75 km, confirmed the presence of high-grade
gold-silver mineralization and remains open at depth and along strike.
• Zachary Bay copper-gold prospect is one of the most notable but little-explored gold showings of the
Unga project.
• Centennial gold deposit provides potential bulk-tonnage-style gold mineralization. Work to advance the
geologic understanding of the deposit prior to additional drilling is warranted.
• Unga’s potential scale allows Redstar to entertain selective partnerships on the project
August 8, 2018: Redstar Gold Corp. (TSX.V: RGC, US: RGCTF, FRA: RGG) ("Redstar" or the
"Company") announces the filin g on SEDAR of the independent NI 43-101 technical report completed by
Michael M. Gustin, Ph.D. C.P.G and S teven I. Weiss, Ph.D. C.P.G. of Mine Development Associates of
Reno, Nevada, USA. (MDA) entitled “Technical Report on the Unga Project, Southwest Alaska, USA ”.
The report can be accessed on SEDAR.com and on Redstar’s website.
MINERALIZED SHOWINGS AND PROSPECT MAP FOR THE UNGA PROJECT
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Jacques Vaillancourt, Redstar Gold’s Chairman commented - “The excellent work by MDA has su cceeded
in both summarizing most of the historical work programs , but also highlights the enormous exploration
potential that the Unga project hosts. We have focussed on Shumagin, but there are “company maker”
projects amongst the more than 25 distinct areas where there is the presence o f mineral showings. We will
continue progress at Unga, but this report highlights the enormous potential scale of Unga and as a result
we will begin to entertain selective partnerships.”
SUMMARY HIGHLIGHTS OF TECHNICAL REPORT
HISTORY: Gold was discovered on the southeast side of Unga Island in 1891. The Apollo gold mine
reportedly operated between the late 1880s and the early 1920s and produced about 100,000 to 130,000
ounces of gold; the nearby Sitka mine operated between 1900 and 1922 , but gold production was limited to
a few thousand ounces. Both mines produced gold from the upper, oxidized portions of sulfide -rich lodes.
When the mines were operating, supplies and personnel were shipped directly from San Francisco and
Seattle to site by oceangoing barge.
Multiple companies conducted exploration campaigns on Unga Island and neighboring Popof between 1888
and 200 5, including Alaska Apollo Gold Mines (“AAGM”) and Battle Mountain Gol d Corporation
(“BMGC”) on lands outside of Redstar’s patented and state claims.
Redstar Gold Corporation acquired the explorati on rights to Unga Island and part of Popof Island in 2011.
The Company’s initial exploration efforts focused on development of high-grade gold tar gets along the
Shumigan tren d. In March, 2018, the Company engaged MDA to perform a property-wide review of
exploration history of Unga and recommend additional potential mineral prospects for further exploration.
The highlights of the MDA technical report are summarized below.
HISTORICAL RESOURCE ESTIMATES: The following historical estimates of the Shumagin,
Centennial, and Sitka deposits pre -date, and are not in accordance with, NI 43 -101 guidelines . These
estimates are relevant only for historical interest but are not considered reliable and a Qualified Person has
not done sufficient work to classify the historical estimates as current mineral resources or mineral reserves.
Redstar is not treating th ese historical estimates as current mineral resources or mineral reserves, a nd they
should not be relied upon.:
a. Shumagin: The most recent historical estimate of mineral resources was commissioned by AAGM in
1995. A “diluted resource” of 280,335 tons (254,314 tonnes) grading 0.80 oz. Au/ton (27.4 g Au/t) and
3.65 oz. Ag/ton (125 g Ag/t) was estimated by Strandberg (1995), for about 224,000 ounces of gold
and 1,025,000 ounces of silver.
b. Centennial: In 1989, BMGC used a polygonal method to calculate in-situ “geologic inferred resources”
for the Centennial deposit that totaled about 4.78 million tons (4.34 million tonnes) with an average
grade of 0.042 oz. Au/ton (1.44 g Au/t), for a total of about 200,000 ounces of gold. An additional 2.06
million tons (1.87 million tonnes) with an average grade of 0.040 oz. Au/ton (1.37 g Au/t), for about
82,000 ounces, were classified as “speculative Au resource possibilities”.
MINERALIZATION:
Unga Island: More than 25 distinct areas with showings of epithermal precious - and base -metal
mineralization, porphyry copper -gold mineralization, and extensive areas of hydrothermally altered rocks
have been identified on Unga Island, particularly along the Shumagin and Apollo-Sitka trends.
Shumagin Vein Zone: The Shumagin vein zone consists of multiple, subparallel to anastomosing
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veins, stockwork, and vein - cemented breccia filled with quartz, pyrite, and calcite ± adularia ±
rhodocrosite ± green clay ± sphalerite ± galena and lesser chalcopyrite. Drill holes have penetrated the
Shumagin vein system for approximately 1.75 kilometers along strike and as much as ~250 meters
vertically below the surface trace. Gold, silver, and base -metal mineralization is not evenly distributed
within the Shumagin vein system, as is commonly the case in epithermal vein deposits world -wide.
Redstar’s drilling from 2011 through 2017 tripled the strike length of the Shumagin vein system to 1.75
km, confirmed the presence of high -grade gold-silver mineralization down dip from historic al drilling,
and demonstrated wider zones of gold -silver mineralization exist around the central high -grade veins.
The mineralization remains open at depth and along strike.
Apollo and Sitka Vein Zones: Steeply-dipping, intermediate-sulfidation epithermal quartz-carbonate ±
adularia veins are exposed discontinuously along northeast - and northwest -trending faults cutting
andesite at the historic Apollo and Sitka mines. Historic production was from veins a nd vein-breccia
that are reported to contain significant free gold, chalcopyrite, sphalerite, galena, pyrite, and native
copper, but production was limited to the upper, oxidized portions. The vertical range of presently
known gold mineralization is about 425 meters from the surface. Below the oxidation boundary,
historic records reported in $/ton indicate grades of 3.4 g Au/t to 8.2 g Au/t (0.1 to 0.24 oz. Au/ton)
were present in vein zones up to 7 meters in width.
Zachary Bay copper-gold prospect: Lying north of the Shumagin and Apollo-Sitka trends, Zachary Bay
is one of the most notable but little -explored gold showings of the Unga project. Hole Z1, one of the
four holes drilled by Duval -Quintana in 1975, penetrated an intermediate -composition, possibly
composite intrusion with clear porphyry -style biotite -magnetite potassic alteration and chalcopyrite
disseminated and in veinlets. The hole intersected disseminated copper -gold mineralization over 107
meters with an average grade of 0.11% Cu and 0.280 g A u/t. The potassic alteration, visible
chalcopyrite, and the assays from hole Z1 are highly significant for a potential porphyry copper -gold
deposit. There has been no follow-up exploration of this important target.
Pray’s Vein: Alteration and anomalous surface rock and soil geochemistry in the prospect is indicative
of low- or intermediate-sulfidation epithermal gold mineralization, mainly in the form of narrow veins
and vein stockwork.
Bloomer Ridge: Alteration and anomalous surface rock and soil geoche mistry in the prospect is
indicative of low - or intermediate -sulfidation epithermal gold mineralization, mainly in the form of
narrow veins and vein stockwork. Located 900 meters south of the Shumagin vein system, anomalous
gold in surface rock samples is associated with a swarm of narrow epithermal quartz veins and
stockwork; this vein zone has not been drilled.
Orange Mountain: Alteration and anomalous surface rock and soil geochemistry at Orange Mountain is
indicative of low - or intermediate -sulfidation epithermal gold mineralization, mainly in the form of
narrow veins and vein stockwork. The prospect is a topographically elevated, central portion of the
Shumagin trend with aerially extensive quartz -alunite-clay alteration peripheral to residual quartz
bodies of magmatic - hydrothermal origin. Three shallow historical drill holes intersected abundant
pyrite and up to 0.35 g Au/t and elevated concentrations of mercury. Insufficient drilling has been done
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to adequately test this large area for gold-silver mineralization of the high-sulfidation type.
Pook: Alteration and anomalous surface rock and soil geochemistry at Pook is indicative of low - or
intermediate-sulfidation epithermal gold mineralization, mainly in the form of narrow veins and vein
stockwork.
Aquila: The Aquila prospect is located 6 kilometers southwest of the Shumagin area and has been the
site of significant exploration by previous operators. The propsect is centered on an anastomosing array
of narrow epithermal quartz veins. In 1980 -1981, 12 widely dispersed shallow core holes were drilled
at Aquila. An estimated true width of 0.43 meters of 109.7 g Au/t (1.4 feet of 3.2 oz Au/ton) in hole
AQAME-2-80 and 5.2 meters of 5.55 g Au/t in hole AQAME -1-80 were the best results from this
drilling.
Empire Ridge: Epithermal gold mineralization has been identified in quartz -adularia ± carbonate veins
and vein- breccias. During the 1980s, three shallow holes were dr illed at Empire Ridge, one of which
penetrated a zone identical to the Apollo mineralization with 7.8% combined lead, zinc, and copper and
21 g Ag/t, but no significant gold.
California: Epithermal gold mineralization has been identified in quartz-adularia ± carbonate veins and
vein- breccias. Four holes were drilled at the California which penetrated anomalous gold to 1.7 g Au/t
over 0.9 meters (core length), but did not replicate or extend down dip the high -grade gold reported for
historical samples from the California adit.
Heather prospect: Located within a large area of hydrothermal alteration at the west end of the Apollo-
Sitka trend, epithermal gold mineralization has been identified in quartz-adularia ± carbonate veins and
vein- breccias.
Popof Island: At least six precious -metal showings have been identified on Popof Island, including the
Centennial gold deposit. Five areas of hydrothermal alteration, epithermal veins, and gold ± silver ± copper-
lead-zinc mineralization have been recognized east of the Centennial deposit at the Propalof zone, Suzy and
Rhodo veins, the SoWhat veins, the Red Cove alteration zone, and the Digit veins.
Centennial Gold Deposit: Disseminated and minor stockwork gold mineralization exists within a broad
north-northwest trend and extends about 1,200 meters in length by 600 meters in width, as delineated
by Battle Mountain Gold Corp ( BMGC) with trenches and drilling. The mineralization is largely
within 50 meters of the surface, but is believed to be mostly unoxidized. The bul k of the
mineralization is disseminated and possibly stratiform to somewhat discordant across variou s gently-
dipping lithologies. BMGC drilled a total of 5,739 meters in 60 core holes. Mineralized material is
typically in the 0.5 to 2.0 g Au/t range over as much as 60 meters in apparent thickness.
Red Cove : The prospect has an extensive zone of advanced -argillic alteration with native sulfur,
gypsum veinlets, anhydrite, vuggy residual quartz, disseminated pyrite, and rare cinnabar that is
interpreted as the upper lithocap of a high -sulfidation system. Five widely spaced core holes for a total
of 852 meters were drilled in 1988 and 1989. These holes encountered pyrite -gypsum veins, but the
maximum gold assay was 0.166 g Au/t over 4.6 meters.
INTERPRETATION AND CONCLUSIONS: A significant number of diversely mineralized showings
have been identified to date within the large land position of the Unga project . It is likely that gr oups of
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Unga project mineralized showings are genetically related to magmatic and intrusive activity of the Popof
volcanics and discrete magmatic -hydrothermal centers, with the most obvious being O range Mountain, a
high-level high-sulfidation alteration zone that can reasonably be inferred to be u nderlain by an intrusion.
The S humagin-trend intermediate -sulfidation gold -silver occurrences lie on either side o f, and appear to
emanate from, Orange M ountain. The Zachary Bay copper -gold porphyry target, which lies about 7km
north of Orange M ountain, may represent a completely different manifestation of a similar magmatic -
hydrothermal system, but in this case at a deeper erosional level than at orange mountain. The Unga project
appears to offer the full vert ical and lateral spectrum of high -sulfidation to intermediate -sulfidation (and
possibly low-sulfidation) targets.
Intermediate-sulfidation targets are the most abundant of the presently known mineralized areas at the Unga
property, and of these, the Shumagin vein-breccia zone is the most advanced. The Shumagin vein zone has
a drilled strike extent of 1.75 kilometers and remains open in both directions. The central portion of the
drilled strike length has returned significant gold and silver intercepts, i ncluding a number of intersections
in excess of 10 g Au/t, and a few in excess of 100 g Au/t, but hole -to-hole continuity of these high grades
has not yet been adequately established. The vein system remains open along strike and at depth and also
has the potential of hosting a separate mineralized segment along the vein zone. Of the four deepest
intersections of the Shumagin vein system, three of the holes returned single -sample values in excess of 10
g Au/t, accompanied by lower -grade but still significan t results (>3 g Au/t). These three intersections lie
along a 450-meter strike extent of the vein zone, below the central portion of the presently drilled vein zone;
the fourth deep hole lies outside of this strike length. The Shumagin vein -breccia zone r emains strong in
these holes, and base-metal values are lower, both of which support the concept that the mineralized core of
the Shumagin system has not yet been defined.
The geology of the Centennial deposit is incompletely understood, but it clearly re presents a style of
mineralization different from the intermediate -sulfidation vein systems at Shumagin and Apollo -Sitka.
Drilling at Centennial appears to have defined a sub -horizontal zone with gold values typically in the range
of 0.2 to 2 g Au/t, with no appreciable silver or base metal values and apparently only superficial oxidation.
While high -angle, high -grade, structurally controlled mineralization may be present, and there is some
evidence of this in sea -cliff exposures at the southern extent of the prospect area, this concept has not yet
been adequately tested due to insufficient drill density and the predominance of vertical holes. The
Centennial deposit provides a n example of potential bulk -tonnage-style gold mineralization at the Unga
project, and work to advance the geologic understanding of the deposit prior to additional drilling is
warranted.
The Shumagin, Apollo -Sitka, Centennial, and Zachary Bay prospects show the diversity of target types
present at the Unga project. While the Shumagin, Apollo -Sitka, and Centennial areas have received the
bulk of exploration work to -date, each of these prospects warrants further exploration. All other prospect
areas wit hin the Unga project, including Zachary Bay and the numerous, primarily epithermal vein -type
prospects (Aquila, Norm’s Vein, Pook, Pray’s Vein, Bloomer Ridge, California, etc.), remain at an early
stage of exploration. These less-explored prospects require a complete compilation and review of existing
data, and systematic field evaluations by experienced geologists in the field, including mapping and rock
and soil sampling. For example, the Bloomer Ridge target, which lies less than one kilometer southeas t of
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Shumagin, is presently defined by numerous rock -chip gold values over an apparent strike length of almost
one kilometer, and it could quickly advance in importance.
Finally, it is noteworthy that a first-pass level of surface exploration identified all of the existing prospects.
Significant portions of the property have therefore experienced only cursory field review, if any at all.
Recently developed concepts of potentially mineralized high -sulfidation alteration and related intrusive
centers (e.g., Orange Mountain; Zachary Bay) and laterally associated epithermal systems (e.g., Shumagin;
Apollo Sitka) should be used to develop exploration strategies that can be applied to the entire project,
including areas of limited exposure.
REDSTAR GOLD CORP:
Redstar is a well -financed junior exploration company, with a very strong, supportive institutional
shareholder base, no debt, and is focused on high-grade gold exploration and advancing its high-grade Unga
Gold Project in Alaska. The 100% controlled Unga Gold Project includes an intermediate sulfidation
epithermal high-grade gold project on a district scale, with the property encompassing approximately 240
km2, and containing multiple high grade gold zones drilled or identified at surface. The former Apollo-Sitka
gold mine, located on the southern Apollo -Sitka Trend, was Alaska’s first underground gold mine and the
site of historic high-grade (~10 g/t Au) gold production. The Unga Gold Project has extensive infrastructure
with daily flights from Anchorage l anding on a one mile long paved airstrip and a deep -water port on
neighboring Popof Island, and a moderate climate noting it resides at the 55 th degree latitude and next to
tidewater. In addition, Redstar owns approximately 5.0M shares of NV Gold Corp. (TSXV: NVX and 30%
of the Newman Todd Gold Project, in Red Lake, Ontario, Canada.
For additional information please contact:
Jacques Vaillancourt
Chairman & Interim CEO
Tel: +44.7.802.268.247
Email: [email protected]
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture
Exchange) accepts responsibility for the adequacy or accuracy of this release.
Forward-Looking Information This release includes certain statements that may be deemed "forward-looking statements". All
statements in this release, other than statements of historical facts, that address events or developments that Redstar Gold Corp.
(the "Company") expects to occur, are forward-looking statements. Forward-looking statements are statements that are not
historical facts and are generally, but not always, identified by the words "expects", "plans", "anticipates", "believes", "intends",
"estimates", "projects", "potential" and similar expressions, or that events or conditions "will", "would", "may", "could" or
"should" occur. Although the Company believes the expectations expressed in such forward-looking statements are based on
reasonable assumptions, such statements are not guarantees of future performance and actual results may differ materially from
those in the forward-looking statements. Factors that could cause the actual results to differ materially from those in forward-
looking statements include market prices, exploitation and exploration successes, and continued availability of capital and
financing, and general economic, market or business conditions. Investors are cautioned that any such statements are not
guarantees of future performance and actual results or developments may differ materially from those projected in the forward-
looking statements. Forward-looking statements are based on the beliefs, estimates and opinions of the Company's management on
the date the statements are made. Except as required by applicable securities laws, the Company undertakes no obligation to update
these forward-looking statements in the event that management's beliefs, estimates or opinions, or other factors, should change.