Visible Gold at Eaglehawk Raises Stakes for Side Well Resource Update

Visible Gold Sparks Excitement at Eaglehawk

Great Boulder Resources (ASX – GBR) has revealed the presence of coarse visible gold in its recent reverse circulation (RC) drilling at the Eaglehawk prospect, part of the company’s flagship Side Well Gold Project near Meekatharra, Western Australia. The standout discovery comes from hole 25EHRC024, where visible gold flakes up to 4mm were observed between 154 and 155 metres down-hole, correlating with a west-dipping high-grade vein system identified in earlier drilling.

While visual estimates of gold abundance are inherently approximate and pending laboratory assays will provide definitive grades, the sighting of visible gold is often a strong indicator of high-grade mineralisation and has generated considerable optimism within the company.

Strong High-Grade Intersections Confirm Potential

Alongside the visible gold, Great Boulder reported several impressive assay results from recent drilling phases. Notably, hole 25EHRC003 returned 8 metres at 29.18 grams per tonne (g/t) gold from 128 metres, including a 4-metre interval grading an extraordinary 54.80 g/t. Other significant intersections include 8 metres at 4.37 g/t from 146 metres (including 3 metres at 9.75 g/t) and 15 metres at 1.89 g/t from 55 metres, highlighting the continuity of mineralisation across Eaglehawk and the nearby Mulga Bill prospect.

These results reinforce the company’s view that the Mulga Bill–Eaglehawk system hosts multiple high-grade zones that remain underexplored and could substantially increase the resource base.

Broader Drilling Program and Technical Work Underway

Great Boulder is actively progressing resource definition drilling with 27 RC holes completed at Eaglehawk, alongside ongoing air core (AC) drilling targeting new prospects such as Ironbark. Assays are awaited for 21 RC holes at Side Well South and 13 at Ironbark, which will inform further drilling and resource estimation efforts.

Complementing the drilling, the company is advancing technical studies critical for project development, including groundwater assessments, rock waste characterisation, surface water studies, geotechnical evaluations, and metallurgical testing. These programs aim to underpin an updated mineral resource estimate and support future feasibility work.

Strategic Outlook and Market Position

With a current Mineral Resource Estimate of approximately 668,000 ounces at 2.8 g/t gold, Great Boulder’s Side Well Project is shaping up as a significant gold asset in the Murchison region. Managing Director Andrew Paterson expressed enthusiasm about the drilling results, noting the deposit’s capacity to deliver surprising high-grade zones and the expanding prospect pipeline.

The company’s systematic exploration approach and strong technical foundation position it well to capitalise on these discoveries, with an upcoming resource update anticipated to reflect the recent drilling success.