Barton Gold Completes Challenger Drilling, Targets Stage 1 DFS by Mid-2026
Barton Gold has wrapped up diamond and reverse circulation drilling at its Challenger Gold Project, advancing a Definitive Feasibility Study targeting a low-risk Stage 1 open pit operation by the second half of 2026.
- 1,322m diamond and 8,065m reverse circulation drilling completed
- Stage 1 DFS aims to convert 313koz Au resource to ore reserves
- Focus on near-surface materials and tailings to defer underground mining risks
- Restart of Central Gawler Mill to unlock regional development optionality
- Initial assay results expected imminently
Drilling Completion Supports Feasibility Push
Barton Gold Holdings Limited (ASX:BGD) has completed a significant phase of drilling at its Challenger Gold Project in South Australia, delivering 1,322 metres of diamond drilling alongside 8,065 metres of reverse circulation (RC) drilling. The recent campaign, executed by Foraco Drilling despite challenging weather, aims to underpin a Definitive Feasibility Study (DFS) targeting a streamlined Stage 1 open pit operation by the second half of 2026.
This drilling effort is designed to convert the upgraded JORC (2012) Mineral Resource of 313,000 ounces of gold into JORC Ore Reserves, a critical step toward restarting the adjacent Central Gawler Mill (CGM) and maximising development optionality across Barton’s portfolio, including the Tarcoola, Wudinna, and Tolmer projects.
Stage 1 Strategy Focuses on Low-Risk Restart
The DFS is shaping up around a ‘baseline’ Stage 1 operation, which prioritises near-surface mineralisation and historical higher-grade tailings from tailings storage facility 1 (TSF1). This approach deliberately avoids disturbing the historical high-grade underground mine and its infrastructure, effectively deferring the technical risks and costs associated with underground mining to a later phase.
By focusing on open pit resources and tailings, Barton aims to deliver a lower-risk, shorter-duration initial operation (3–4 years) that supports a sustainable restart of the CGM. This mill restart is pivotal, as it materially enhances the feasibility of processing ore from Barton’s regional assets, creating a hub for future growth.
Assay Results and Next Steps
Assay results from the recent RC drilling are expected imminently, which will provide further clarity on resource conversion and metallurgical characteristics. The diamond drilling also generated geotechnical data and samples for metallurgical optimisation, essential inputs for refining open pit designs and operational plans.
Managing Director Alexander Scanlon highlighted the significance of this milestone, noting the completion of drilling despite extreme rains and the strategic benefit of the Stage 1 model in derisking the project. Barton plans to continue its exploration momentum with development drilling at the nearby Tunkillia Gold Project, which holds 1.6 million ounces of gold and 3.1 million ounces of silver in JORC resources.
This progress builds on earlier milestones, including the substantial reverse circulation drilling campaign completed in March 2026, which helped upgrade mineral resources and support the DFS framework. The company’s recent major drilling milestone set the stage for this latest diamond drilling phase and the ongoing feasibility work.
Bottom Line?
Barton’s focus on a simplified, near-surface Stage 1 operation could lower execution risks and unlock regional synergies, but assay results and DFS outcomes will be pivotal in confirming project viability.
Questions in the middle?
- Will upcoming assay results materially alter resource and reserve estimates for Challenger?
- How will the DFS economics shape the timing and scale of the Central Gawler Mill restart?
- What are the potential implications of deferring underground mining on long-term project value?
