Blue Star Acquires Historical Dataset and Confirms Cu-Rich VMS Mineralization at Sand Lake Prospect
Blue Star Acquires Historical Dataset and
Confirms Cu-Rich VMS Mineralization at Sand
Lake Prospect
Vancouver, British Columbia--(Newsfile Corp. - April 21, 2026) -
Blue Star Gold Corp. (TSXV: BAU)
(OTCQB: BAUFF) (FSE: 5WP0) ("Blue Star" or the "Company")
is pleased to announce the
acquisition of a substantial historical dataset covering the Sand Lake prospect within the Roma Project.
The dataset includes ground electromagnetic (EM) surveys, borehole EM data, and geological
information from historical drilling that intersected stringer to massive sulphide mineralization associated
with a copper-rich volcanogenic massive sulphide (VMS) system.
The Sand Lake target is located approximately 12 kilometres north of the High Lake VMS deposits
within the same volcanic stratigraphy of the High Lake Belt, West Kitikmeot Region, Nunavut (Figure 1).
The area is located less than one kilometre from the proposed road route of the Grays Bay Road and
Port Project, part of the Arctic Security Corridor proposed to connect Yellowknife, NT to the Arctic coast.
In March, Prime Minister Carney referred the proposed Project to the federal Major Projects Office (West
Kitikmeot Resources news release dated March 12, 2026). The Office was created to fast-track
infrastructure projects that are deemed to be of national importance.
Highlights
Acquisition of extensive historical dataset includes five ground EM surveys (UTEM and PROTEM),
borehole EM from 17 drill holes, and geological & geochemical data from 29 historical drill holes
Best historical intercepts of
21 metres of 2.71% copper
and
6.3 metres of 5.28% copper
(Table 1)
Mineralized horizon interpreted to extend ~530 metres along strike
Reported mineralisation includes copper, zinc and precious metals
3D plate modelling of historical EM conductors to refine exploration targets is underway
"The Sand Lake dataset provides a strong foundation for advancing a copper-rich VMS system with
clear indications of scale," said Grant Ewing, CEO of Blue Star. "We are prioritizing the integration of
electromagnetic and mineralization data through 3D modelling to better define the system's geometry
and support targeted follow-up drilling. The Company believes the project has the potential to
complement its existing high-grade gold resource while also indicating the presence of a broader,
camp-scale VMS system."
Sand Lake Exploration Target
Based on compilation of the local geology and the historical drilling and geophysical datasets, the
Company has completed a preliminary internal assessment of the scale potential of the Sand Lake
mineralized system. This review, which incorporates historical drill intersections, interpreted strike extent,
and approximate thickness of the mineralized horizon, suggests a conceptual exploration target of 3 to 5
million tonnes with a potential grade range of 2.3% to 3.6% copper equivalent*.
The exploration target was derived by modeling the identified massive sulphide, semi-massive sulphide
and stringer mineralisation as evidenced by the historical drill intercepts in the exploration target area
along the strike of coincident electromagnetic anomalies. The volume of the modeled areas determines
the potential tonnage statement in the exploration target. The grade range of the exploration target was
determined with consideration to the drill results within the modeled exploration target area and
consideration of the geological setting proximal to the established mineral resource estimations in the
nearby High Lake deposits, where tonnages and grades in the various mineralised lenses have similar
ranges (MMG, 2025). The potential quantity and grade of the Sand Lake exploration target is conceptual
in nature and is based on previous drill results that defined the approximate length, thickness, depth and
grade. There has been insufficient exploration to define a mineral resource, and the Company cautions
that there is a risk further exploration will not result in the prospect being delineated as a mineral
resource.
Table 1: Historical Drill Highlights
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/2421/293513_table1.jpg
True widths are not shown however they are estimated to be 70-95% of core lengths.
* Copper Equivalent (CuEq) ranges mentioned above for the exploration target are based on drill intersections which were calculated on a basis of
US$ 4.50/lb for Cu, US$ 3000/oz for Au, US$ 40/oz for Ag, US$ 1.45/lb for Zn, and US$ 0.85/lb for Pb with metallurgical recoveries assumed for all
metals based on the values in the MMG 2013 Mineral Resources and Ore Reserves Statement for the nearby High Lake deposit. The assays have
not been capped. CuEq = Cu + 0.337 * Zn + 0.172 * Pb + 0.819 * Au + 0.012 * Ag; calculations reviewed with
Equivalent Grade Calculator
(aaronmcm.com
)
.
Figure 1: Map Showing Location of Sand Lake Prospect.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/2421/293513_dc61779e5458583d_003full.jpg
Historical Exploration Dataset
The newly acquired dataset includes three UTEM and two PROTEM ground EM surveys, borehole EM
data from 17 historical drill holes, and geological and mineralogical information from 29 drill holes
completed between 2003 and 2008. The historical ground EM surveys were originally completed in
2005 to follow-up extensive airborne EM anomalies occurring under Sand Lake (Robertson, 2006).
Historical drilling completed between 2003 and 2008 tested conductors identified in both the airborne
and ground EM data. Bore hole EM surveys were conducted in 17 of the 29 drill holes to help identify off-
hole conductive responses that may represent nearby sulphide mineralization not intersected by drilling.
Drilling intersected zones of stringer to massive sulphide mineralization hosted within felsic volcanic
rocks, along with strong chlorite and sericite alteration, typical of VMS feeder zones. The mineralized
horizon is interpreted to extend for approximately 530 metres along strike with a mean true thickness of
approximately six metres. Sulphide lenses associated with other deposits in the High Lake greenstone
belt commonly form steep-west dipping bodies. The West Zone lens of the High Lake deposit, reaches
275 metres in strike length, extending about 900 metres down dip and is up to 40 metres thick (MMG
Limited, 2013). Reported copper grades from historical drilling within the Sand Lake sulphide zone
range between 1.5% and 5.7% Cu, with associated zinc and precious metals (see Table 1).
References
MMG Limited, Izok Corridor Report, November 2025.
Public-Report-of-Exploration-Results-for-Izok.pdf
.
MMG Limited, 2013. Mineral Resources and Ore Reserves Statement, June 30, 2013 – Technical Appendix 3: High Lake Project, Nunavut,
Canada.
Robertson, 2006. Wolfden Pushes Ahead at High Lake. The Northern Miner, 23 Jan. 2006.
https://www.northernminer.com/news/wolfden-
pushes-ahead-at-high-lake
.
Assessment Report 030105. Toole, T et al. 2009. High Lake Geological, Geophysical, Geochemical and Drilling Report. OZ Minerals. January
2009.
Historical sampling, drilling and geophysical data in the acquired dataset and documented within the
references appears to have followed industry standards as accepted at the time of the work; the
Company has not yet independently verified the historical data.
Darren Lindsay, P. Geo. and Vice President Exploration for Blue Star, is a Qualified Person under
National Instrument 43-101 ("NI 43-101") and has reviewed and approved the technical information
contained in this news release.
About Blue Star Gold Corp.
Blue Star Gold Corp. is a mineral exploration and development company focused on Nunavut, Canada.
The Company controls over 420 square kilometres of highly prospective and underexplored mineral
properties in the High Lake Greenstone Belt. Its principal assets include the Ulu Gold Project -
comprised of the Ulu Mining Lease and Hood River Property, and the Roma and Auma Projects. The Ulu
Mining Lease hosts the high-grade Flood Zone Gold Deposit, and the Company's broader land package
contains numerous high-priority gold and critical mineral targets, providing substantial upside potential
for resource expansion.
Blue Star's projects are strategically located 40-100 km south of the proposed Grays Bay deep-water
port, with the planned all-weather Grays Bay Road corridor passing close to the Company's Projects.
The Grays Bay Road and Port Project was recently referred to the Major Projects Office by Prime
Minister Carney. The Major Projects Office was created to fast-track infrastructure projects that are
deemed to be of national importance.
Blue Star is listed on the TSX Venture Exchange (BAU), the OTCQB Venture Market (BAUFF), and the
Frankfurt Exchange (5WP0). Additional information is available at
www.bluestargold.ca
.
For further information, please contact:
Grant Ewing, P. Geo., CEO
Telephone: +1 778-379-1433
Email:
Neither the 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.
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