Sunday, July 12, 2026

Great Boulder Resources Ltd begins phase 5 RC drilling at Mulga Bill prospect to build on bonanza-grade hits

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Managing director said, “Given the scale and potential of Mulga Bill there is a lot more drilling to do but every program improves our confidence that this is a large scale, well-endowed mineral system.”

() has started phase 5 reverse circulation (RC) drilling at the Side Well Project in Meekatharra, WA to build upon earlier work in the Mulga Bill prospect area which included bonanza-grade hits.

Between 4,000 and 5,000 metres of drilling is planned to continue testing high-grade gold mineralisation.

Great Boulder’s recent intersections at Mulga Bill include 14 metres at 36.12g/t gold and 6 metres at 31.20g/t gold.

The company is now interpreting results from the recently completed gravity survey at Side Well, and these are on track to be announced shortly.

Final assays from the diamond drilling program are still being processed but are also due to be released soon.

“Large scale, well-endowed mineral system”

Great Boulder managing director Andrew Paterson said: “This drilling is now our fifth RC program at Mulga Bill this year, and potentially the biggest yet.

“We’re still building our understanding of the deposit, and to some extent our drill planning reflects this.

“We continue to develop and test our hypotheses as we drill.

“I’m extremely happy with the way the Side Well project has progressed this year.

“Given the scale and potential of Mulga Bill there is a lot more drilling to do but every program improves our confidence that this is a large scale, well-endowed mineral system.”

Whiteheads aircore program

At the Whiteheads Gold Project, an aircore (AC) program testing regional targets was completed in early October.

This program comprised 122 AC holes for 5,166 metres of drilling, with assay results expected in about eight weeks.

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