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Highlights
- High-grade gold results boost prospects for Mulga Bill.
- Mineralisation at Mulga Bill extends 300m north, adding value.
- Metallurgical testing results eagerly awaited, offering new insights.
Great Boulder Resources (ASX:GBR) is positioning itself for significant advancements with new drilling results from the Mulga Bill prospect, promising a potential resource upgrade at its West Australian site. The latest extensional drilling has returned exceptional gold grades, including an impressive 10m at 17.22 grams per tonne (g/t) from 112 meters, and even higher concentrations—3 meters at 54.33 g/t from 119 meters. These outstanding findings from the final 2024 reverse circulation drilling are expected to extend the known deposit by 300 meters.
According to Managing Director Andrew Paterson, the results confirm Great Boulder’s structural model predictions. “The high-grade zones, aligned with the lithological contact and hosted within west-dipping quartz veins, highlight the potential of the area,” said Paterson. This exciting discovery has deepened the exploration team’s optimism, indicating even greater potential in the northern extension of Mulga Bill, where mineralisation is still open for further exploration.
This drilling campaign has been focused on the north of the existing 568,000-ounce gold resource. Further exploration drilling outside the current resource boundary has hit gold mineralisation along a 2.5km strike. The recent drilling reveals valuable extensions and improves the geological model for the region. As part of an ongoing effort to advance its assets, Great Boulder is preparing for a new resource estimate, which will incorporate these latest drilling results.
The company also has ongoing metallurgical testing underway, with initial results from tests focused on gravity recoveries and cyanide leach extraction techniques. The aim is to understand how different mineralisation types behave, including samples in both oxidised and unweathered states. With mineralisation extending into Mulga Bill North, the region is increasingly viewed as a key asset within Great Boulder’s portfolio.
In addition to Mulga Bill, the company is also exploring new opportunities at the Whiteheads Project near Kalgoorlie and continues to work on its Wellington zinc and lead exploration project. In total, these efforts solidify Great Boulder’s position as a leading junior exploration company focused on gold and base metals in Western Australia.
With drilling at the Side Well and Whiteheads projects set to resume, the focus remains on progressing exploration for both gold and base metals, pushing Great Boulder towards potential growth in the exploration and development phase. The upcoming metallurgical testwork results will further shape the future trajectory of the company’s resources.
