Great Western Mining (AIM:GWMO) Operational Update

Great Western Mining Corporation PLC (AIM – GWMO, Euronext Growth – 8GW), which is exploring and developing gold, silver and copper targets in Nevada, is pleased to provide the following operational update:







Great Western’s team is now in Mineral County, Nevada, preparing for the start of drilling operations and the 2023 exploration programme. The team is being strengthened by the addition of a new full-time geologist, a US citizen who will be permanently based in Mineral County.

First drilling will be on the OMCO Mine prospect at the Olympic Gold project, to follow up the 2022 discovery of an extension to the previously mined OMCO vein, expected to commence in April when weather and ground conditions permit.


It is now several weeks since groundwork was completed at the site of the Company’s 50%-owned milling joint venture in Mina, Nevada and the next stage is currently waiting on suitable weather conditions for pouring concrete, due to a recurrence of severe weather conditions this month.

As previously announced, all permit applications have been filed with the authorities and approval is awaited, timing of which is outside the Company’s control. Virtually all equipment needed for the assembly of the plant is now available and there are unlikely to be significant delays in the overall programme as a consequence of the extended winter.


As previously announced, the Company has been conducting an extensive review of its copper prospects during the winter, including the area known as M2 located in the Black Mountains group of claims.

At M2, a JORC-compliant independent report in 2018 established a copper resource, partly inferred/partly indicated, of 4.28 million tonnes at a grade of 0.45% Cu[1] . This is a large resource at a significant grade but falls short of the tonnage required for commercial development.

Included in the 2018 JORC-compliant independent resource report were the following two statements:

(1) The deposit contains a central area, 300 meters in length, which has only been tested by two drillholes. This area is given a high probability of containing additional resources. At a finding rate of 3,505 tonnes per meter we assume a probably target of 1 to 3 million tonnes, grading 0.4 to 0.6 percent total copper.

(2) The area of M2 IP anomaly comprises 163 hectares. Deducting the drilled area, which comprises 33 hectares, the target area consists of 130 hectares. Assuming a 65% probability of success, this target would consist of 9 to 14 million tonnes grading 0.4 to 0.6 percent total copper.

As the areas referred to in (1) and (2) above have not yet been drilled, they are categorised as Exploration Targets in JORC terminology and cannot be categorised as Resources. The recent review of all available data, taking into account the independent report on M2, has re-emphasised the exciting potential for M2 which could far exceed the Resource already reported.

If these independently calculated Exploration Targets prove to be correct, the Resource and the Exploration Targets together at M2 could become 14.3 – 21.3 million tonnes at 0.4 – 0.6 % copper, being several times larger than the existing Resource. Such an increase would be transformative for Great Western, but in addition it should be noted that the 1.5 km strike-length copper Resource at M2 lies within a 6.5 km belt of along-strike potential which is all within the Company’s claims, open to the northeast and southwest as well as down-dip to the southeast. The strongest IP anomaly, as yet undrilled, is located to the southwest of the existing Resource under tertiary lavas. To the northeast, where tertiary lavas do not obscure the host sequences, surface showings of copper occur for a further 1.5 km on Great Western’s claims.

Please visit the Black Mountain page on the Company website using the link below to view images showing (1) the M2 prospect within the Black Mountains group and (2) an overview of the regional setting of Great Western’s claims within an extensively mined area:


Great Western is hosting investment analysts in Mineral County, Nevada this week who are visiting the Company’s claims and reviewing progress at the mill site.


Great Western Executive Chairman Brian Hall will be presenting at the 2023 Global Mining Finance Spring Conference on Thursday 20th April 2023. This is taking place at The Armourers’ Hall, 81 Coleman St, London EC2R 5BJ and will begin at 9.30 a.m. BST. Complimentary delegate passes can be obtained using the following link:

Brian Hall, Executive Chairman commented: “In-depth work over recent months has made our copper potential look ever more interesting and we are actively seeking a development partner for M2. Once we have completed our studies of the Huntoon Valley and the Eastside Mine copper prospects, we will report on these as well. Great Western’s near, medium and longer term objectives remain (1) completing the mill facility and bringing it on to production (2) continuing the search for precious metals and pinning down a discovery for development and (3) ensuring that the potential upside of the Company’s copper prospects is maximised. Importantly, once the mill is producing we will become a revenue and cash generating business and we look forward to keeping shareholders informed on progress.”

Qualified Person Statement: The information in this announcement that relates to exploration results is based on information reviewed by Dr James Blight MGeol PhD MAusIMM who is Exploration Manager of Great Western Mining PLC. Dr Blight is a “Qualified Person” as defined in the “Note for Mining and Oil & Gas Companies” which form part of the AIM Rules for Companies. Dr Blight has reviewed and consented to the inclusion in the announcement of the information in the form and context in which it appears.

For further information:

Great Western Mining Corporation PLC

Brian Hall, Executive Chairman

+44 207 933 8780

Max Williams, Finance Director

+44 207 933 8780

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