REG - Great Western Mining - Exploration Update

Great Western MiningAnnouncement

01/09/2025 07:00

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RNS Number : 3004X  Great Western Mining Corp. plc  01 September 2025

 

Great Western Mining Corporation PLC / AIM: GWMO / Euronext Growth: 8GW

1(st  )September 2025

 

GREAT WESTERN MINING CORPORATION PLC

("Great Western", "GWM" or the "Company")

 

Exploration Update

 

Drilling set to test high-potential gold and copper targets across Nevada
portfolio

 

Great Western Mining Corporation PLC, a strategic and precious metals
exploration and development company, is pleased to provide an update on
exploration activities at key targets in the Walker Lane belt of Nevada, USA.

 

HIGHLIGHTS

·    Signed a rig contract for approximately 1,800 metres of RC drilling
at Rhyolite Dome and West Huntoon commencing early October.

·    Completed an IP survey at the previously undrilled Rhyolite Dome gold
prospect, defining drill targets.

·    Completed soil sampling at the Defender-Pine Crow tungsten prospect,
with laboratory analysis now underway.

·    Work ongoing at recently staked Yellow Peak claims, using recent soil
sampling and evaluation of historical drill data to expand the West Huntoon
copper footprint.

 

Great Western Chairman Brian Hall commented: "We are pleased to announce that
our planned drilling programmes at Rhyolite Dome and West Huntoon will
commence in early October, following the recent signing of a contract with HD
Drilling LLC. These two campaigns will test high-potential gold and copper
targets, convert surface anomalies into measurable mineralisation and de-risk
our assets. Combined with the recently completed IP survey at Rhyolite Dome
and strategic staking at Yellow Peak, we are taking a disciplined, data-driven
approach to unlock the significant value potential across our Nevada
portfolio. Results from these programmes are eagerly anticipated and will
guide the next stage of exploration."

 

DETAILS

Upcoming Drilling - Rhyolite Dome Gold & West Huntoon Copper Prospects

Great Western has signed a drilling contract with HD Drilling LLC of
Winnemucca, Nevada, for programmes at the Rhyolite Dome gold prospect and the
West Huntoon copper porphyry prospect. Drilling is scheduled to commence in
early October, using a track-mounted reverse circulation (RC) rig, and is
expected to total approximately 1,800 metres across both projects over a four
to six-week campaign.

 

At West Huntoon, drilling will focus on validating surface copper
mineralisation at depth, supporting an independent report which indicates the
presence of a porphyry system and reducing exploration risk by converting
surface anomalies into measurable subsurface mineralisation. Great Western has
previously drilled a single hole at West Huntoon in search of gold, which
intersected 45.7 metres at 0.27% Cu. In addition to the new drilling, the
Company has secured access to unassayed cuttings from two historical holes
drilled by a prior operator. These are being analysed to enhance geological
understanding and complement ongoing exploration.

 

At Rhyolite Dome, a scout drilling programme is planned. Located in the
southern part of the 840-acre Olympic Gold Project, this prospect lies within
a structural crossover zone between northwest and north-northeast trending
faults but has never been drilled. Drill targets will be based on the recently
completed IP survey. Notably, the Olympic Gold Project encompasses the
historic OMCO Mine, which produced high-grade gold between the two world wars.
Great Western has already intercepted gold at nearby Trafalgar Hill and along
extensions of the OMCO system.

 

Geophysical Survey - Rhyolite Dome Gold Prospect

An induced polarisation (IP) geophysical survey has been successfully
completed at the Rhyolite Dome prospect. This undrilled epithermal gold target
is being advanced using proven geophysical techniques to define drill targets
accurately and optimise hole placement as part of a structured exploration
strategy.

 

Yellow Peak Prospect

Earlier this year Great Western staked strategic new claims at Yellow Peak,
located north of and on trend with West Huntoon's porphyry potential. This
acquisition provides access to a significant set of historical drill cores
from a previous operator. The Company's technical team is currently evaluating
these cores, with results being integrated into the geological database. The
expanded dataset will support the design of an optimised exploration programme
across the broader Huntoon area.

 

Soil Sampling - Tungsten Prospect

In August, the Great Western field team completed a systematic soil sampling
grid adjoining and between the historic Defender and Pine Crow tungsten
workings, where earlier grab samples returned high tungsten grades. All
samples have been delivered to a laboratory in Reno, Nevada, for analysis.
Results will be released once received, timing of which will depend on the
lab's current workload.

 

ENDS

 

For further information visit www.greatwesternmining.com or contact:

 

 Great Western Mining Corporation PLC
 Brian Hall, Chairman                                           c/o St Brides
 Max Williams, Finance Director                                 greatwesternmining@stbridespartners.co.uk
 Davy
 Nominated Adviser, Euronext Growth Adviser & Joint Broker
 Brian Garrahy                                                  +353 (0)1 679 6363
 Shard Capital Partners
 Joint Broker
 Andrew Gutmann / Erik Woolgar                                  +44 (0)20 7186 9008
 St Brides Partners
 Financial PR
 Susie Geliher / Isabel de Salis / Will Turner                  greatwesternmining@stbridespartners.co.uk

 

Notes

Great Western Mining Corporation PLC (AIM: GWMO / Euronext Growth: 8GW) is a
diversified exploration and development company focused on strategic minerals
across several 100%-owned claim groups in Mineral County, Nevada, one of the
world's most prolific and mining-friendly jurisdictions. Backed by an
experienced team, the Company is pursuing a multi-commodity strategy targeting
near-term development and longer term exploration while assessing farm-out and
joint venture opportunities to unlock broader portfolio value. As well as its
flagship Huntoon Copper Project, which hosts a JORC-compliant resource of 4.3
Mt at 0.45% Cu, with upside from undrilled porphyry targets, it has a pipeline
of gold, silver, and early-stage tungsten assets aligned with US critical
minerals priorities.

 

 

 

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