Great Southern Mining is onto what is starting to look like a major new gold discovery at its Amy Clarke prospect in WA’s Duketon gold belt that now stretches across 4.7kms. A new round of aircore drilling has nailed the widest gold intersection yet just 8kms from Regis Resources’ Garden Well mill, with a 17-metre hit grading 1.4 grams per tonne from just 20 metres.
The Amy Clarke prospect within Great Southern Mining’s Duketon Gold project is shaping up as potentially a major new West Australian gold discovery.
The company has now nailed decent grades and wide intersections across 4.7kms, picking up visible gold along the way across an almost dead straight sheer hosted geological trend that is clearly controlling the gold distribution.
After yet another successful round of air core drilling the company is keen to wheel out an RC rig to test for gold at depth and at this stage the 4.7km trend is still wide open to the south.
Even though aircore drilling is often viewed as just a glorified soil sample pointing to potential riches at depth, Great Southern has nonetheless nailed some solid intersections in its latest round of aircore including a shallow 17-metre hit running 1.4 grams per tonne from just 20 metres. Notably, the now well-defined and robust 4.7-kilometre-long deposit is just 8km from Regis Resources’ Garden Well mill.
The 17m hit included 1 metre grading 11.2g/t gold and additional new hits came in at 3 metres grading 5.7g/t gold from just 8m in one hole and 2 metres at 2.9g/t gold from 9m in another. A single 1m intersection came in at a solid 10.3 grams per tonne from 32m.
The company has now completed 8,057metres of aircore drilling across a 6-kilometre stretch at Amy Clarke, with assays still pending for 9 holes. Other previously reported standout results include one hole that intersected 11m running at 1.2g/t gold from 25m, including a 6m section going 1.7g/t gold. A third prior hole hit 2m grading an impressive 23.9g/t from 10m, confirming continuous mineralisation within semi-fresh rock from surface.
Great Southern Mining’s managing director Matthew Keane said: “GSN is very excited by the shallow, high-grade intercepts recorded to date at Amy Clarke which demonstrate an emerging gold discovery. These results surpass expectations from this very early phase aircore drilling campaign. Meanwhile, RC drilling is still ongoing in the other areas of the Duketon Gold Project with up to 90 holes completed at the Golden Boulder discovery since October 2025."
Amy Clarke is a new virgin discovery for Great Southern. Unusually for the Duketon Greenstone Belt there were no old workings to follow at the prospect and little historical work recorded within the tenement before its grant in 2021. Drill targets were defined the old-fashioned way from surface soils and geophysical surveys, followed by aircore drilling in 2021 and the discovery in 2025.
Amy Clarke is only 4 kilometres from Great Southern’s Golden Boulder discovery, where gold mineralisation has been outlined along three parallel trends – Main Line, East Line and Ogilvies. Main line is the focus of current RC drilling where Great Southern is defining a maiden JORC mineral resource over a strike length of 650 metres. Previous hits at Golden Boulder include 5 metres running 14.57g/t gold from 63 metres and 5 metres at 4.6g/t gold.
Great Southern Mines has entered a data collaboration and sharing agreement with gold producer Regis Resources with whom they share exploration of the Duketon Greenstone Belt. The agreement aims to expediate new discoveries within the belt with Great Southern retaining granted exploration licences totalling 421 square kilometres and a further 438 square kilometres under application.
Over in Far North Queensland, Great Southern Mines is also ratcheting up its partnership with heavyweight partner, South African gold giant Gold Fields Ltd. The pair have committed to a high-impact diamond drilling campaign at Edinburgh Park near Mt Carlton. The area is prospective for large scale intrusive related copper-gold-silver mineral systems with impressive and deep-seated IP anomalies coincident with sulphide rich outcrops and geochemical anomalies outlined by Great Southern.
A very busy 2026 awaits the cashed up Great Southern on both sides of the country. With promising drill targets occurring in world class gold camps, serious news flow from a new discovery is potentially not far away…….and it’s is anyone’s guess whether the first big breakthrough will be from the east or the west – both look capable of getting the chocolates.
For further information, please contact Matt Birney, Bulls N' Bears, matt.birney@businessnews.com.au, +61 8 9226 4489
