GoldArc Resources (ASX:GA8) has reported final grade control results from Mt Stirling Well, with the company advancing mine planning at the broader Mt Stirling Project in Western Australia.
The sixth round of grade control drilling has returned 1m @ 59.9 grams per tonne gold (Au) from 24m, marking the deposit’s strongest individual intercept to date.
The program also delivered seven additional intercepts above 10g/t Au, including 1m @ 32.7g/t gold from 30m and 3m @ 14.25g/t Au from 27m.
Managing Director Paul Stephen says Mt Stirling Well has returned ‘high-grade’ gold in every round released, with this final round delivering ‘one of the best intercepts’ recorded at the deposit.
“Six rounds tell us these shoots are systematic and sitting where our model said they would be, which is exactly what you want to know before you commit to a mine plan,” Stephen adds.
The Mt Stirling Well deposit hosts a JORC inferred mineral resource of 198,000 tonnes at 2.30g/t gold for 15,000 ounces. It sits approximately 700m southwest of Mt Stirling within the company’s Leonora North hub.
Six consecutive rounds of grade control drilling have now demonstrated consistent ‘high-grade’ mineralisation, with grades well above the deposit’s 2.3g/t Au resource grade. The results support the deposit’s inclusion in broader Leonora North mine development planning.
Gold mineralisation at Mt Stirling Well occurs within narrow, flat-dipping quartz veins hosted in granitoid rock, contrasting with the Hydra Fault-controlled mineralisation at the nearby Mt Stirling deposit. The grade control program used closely spaced drilling with fences 8m apart and holes approximately 6m apart along fences.
The program is funded by BML Ventures under a 50/50 net profit sharing arrangement, while GoldArc retains 100% ownership of both deposits.
Approximately 28,785m of the combined program has now been completed, with grade control coverage at Mt Stirling Well complete for mine planning purposes.
The company plans to progress mine planning and updated mining models with BML Ventures. It has scheduled a 6,600m reverse circulation program testing soil gold anomalies around the Mt Stirling deposits to commence in August 2026.
GoldArc Resources maintains a total JORC resource base of 200,014 ounces across its Leonora North and South projects, including 137,000 ounces at Mt Stirling and 15,000 ounces at Mt Stirling Well.
Write to JC Villarba at Mining.com.au
Images: GoldArc Resources
