Great Boulder Resources pushes Side Well gold project mineral resource estimate past one million ounces

Great Boulder Resources has updated the mineral resource estimate for its Side Well project east of Meekatharra, pushing it past one million ounces. Great Boulder told the Australian Securities Exchange on Thursday the project now stood at 16 million tonnes at 2g per tonne for 1.02 million ounces of contained gold. The company said this established Side Well with a substantial resource inventory in a project with district-scale, multi-kilometre potential. Great Boulder said 61 per cent of ounces were in the higher confidence indicated category and about 90 per cent of ounces were considered to have potential for open-pit mining. The company said the updated MRE included estimates for the Mulga Bill, Eaglehawk, Flagpole, Ironbark, Saltbush and Golden Bracelet deposits. Great Boulder said since the previous mineral resource estimate was issued in November 2023 it had completed a significant amount of drilling in many areas of the Side Well project, including infill and extensional drilling at Mulga Bill, extensional drilling at Ironbark, resource definition drilling at Eaglehawk and Flagpole, and discovery and definition drilling at Saltbush and Golden Bracelet. The company said the Mulga Bill deposit had grown to 642,000oz at 2.4g/t, with 77 per cent indicated, and a very high-grade component of 441,000oz at 5.3g/t. Great Boulder managing director Andrew Paterson said when the company first started drilling at Side Well, it was quickly realised the project had genuine multimillion-ounce potential. “We are very pleased to deliver on the first one million ounce milestone as we continue to aggressively drill and deliver further resource growth and additional discoveries,” he said. “Recent results have highlighted immediate upside to the resource, for example, the recent visuals from deep holes — 200m below previous drilling — at Mulga Bill highlight the enormous potential of that system. “Meanwhile, we’ve only completed a small amount of drilling at Flagpole and Golden Bracelet, both of which remain open along strike and at depth, and Eaglehawk is only just emerging. “Our systematic exploration highlights the massive potential for the Side Well project, indicating strong resource growth into 2026 and beyond. “With multiple rigs growing the resource base we also remain focused on our development path. “The company intends to lodge mining lease applications covering Mulga Bill, Eaglehawk and Saltbush in the new year while we continue moving the project towards production.”