Side Well Project Exploration Target Nears 1 Million Ounces with Latest Drilling

Exploration Momentum Builds at Side Well

Great Boulder Resources (ASX: GBR) has delivered a compelling update on its flagship Side Well Gold Project in Western Australia, revealing promising new gold discoveries and an extension of the Eaglehawk deposit. The latest reverse circulation (RC) and aircore (AC) drilling results confirm ongoing mineralisation growth, reinforcing the project's status as a significant gold exploration asset in the Meekatharra region.

Recent RC drilling at Side Well South has confirmed additional gold mineralisation, with notable intersections including 14 metres at 1.64 grams per tonne (g/t) gold from 83 metres depth, and 19 metres at 0.84 g/t from 28 metres. These results build on earlier discoveries announced earlier this year, with assays pending for a further 16 RC holes, suggesting that the full extent of mineralisation is yet to be defined.

Eaglehawk Deposit Extended and Remains Open

Complementing the Side Well South results, AC drilling has successfully extended the Eaglehawk deposit by approximately 200 metres to the south, with mineralisation remaining open along strike. Significant intercepts include 8 metres at 2.19 g/t gold from 60 metres, including a higher-grade 4 metres at 4.23 g/t. This extension adds to the continuity and scale of Eaglehawk, a key deposit within the Side Well project.

Great Boulder’s Managing Director, Andrew Paterson, emphasised the importance of these findings, noting that the shallow nature of the initial AC discoveries and the confirmation through RC drilling provide a strong foundation for resource growth. The company is actively progressing follow-up drilling and geophysical surveys to better define mineralisation extents and support future resource estimation.

Exploration Targets Highlight Upside Potential

Alongside drilling results, Great Boulder updated its Exploration Target for the Side Well project, incorporating estimates for Mulga Bill, Eaglehawk, Ironbark, Saltbush, and Side Well South. The combined target ranges from approximately 12.3 to 12.4 million tonnes at grades between 2.4 and 2.8 g/t gold, equating to 940,000 to 1.1 million ounces. These figures are conceptual and not yet JORC-compliant resources but underscore the substantial upside potential across multiple prospects.

The company also highlighted several high-priority geochemical targets, such as Tal Val, which remain untested and could further enhance the project’s scale. With ongoing drilling programs and a systematic approach to exploration, Great Boulder is positioning Side Well for significant resource growth in the near term.

Ironbark Scoping Study and Next Steps

Great Boulder confirmed that the Ironbark scoping study is on track for delivery during the current quarter, a key milestone that will provide greater clarity on the economic potential of this deposit. Meanwhile, the company is completing Phase 2 AC drilling at Side Well South and planning further RC drilling to refine resource estimates and test new targets.

With heritage clearances secured for additional drilling north of Eaglehawk and geophysical surveys underway, Great Boulder’s exploration momentum is set to continue. The company’s strategic landholding, combined with its technical expertise and systematic exploration, supports a positive outlook for the Side Well Gold Project.