Barton Gold Holdings Limited has returned new high-grade silver and gold assays from a recent 3,677-metre drilling program at the Tolmer prospect, located within the Tarcoola Gold Project in South Australia.

The reverse circulation drilling program successfully infilled the Western Silver Zone and extended its strike length to over 500 metres, while also delivering broad high-grade gold intersections within the Eastern Gold Zone. Key assay results from the Western Silver Zone include hole TBM0259, which intersected 16 metres at 120 g/t Ag from 5 metres, followed by another 16 metres at 493 g/t Ag and 0.66 g/t Au from 50 metres, including a 3-metre interval grading 1,706 g/t Ag. Hole TBM0260 returned 12 metres at 194 g/t Ag from 14 metres and 13 metres at 364 g/t Ag and 0.74 g/t Au from 44 metres, featuring a 1-metre high-grade hit of 1,570 g/t Ag and 4.45 g/t Au.

Within the Eastern Gold Zone, hole TBM0289 intersected 16 metres at 3.74 g/t Au and 15.1 g/t Ag from 57 metres, including a 1-metre sample grading 28.9 g/t Au and 61.0 g/t Ag. Additionally, hole TBM0290 yielded 8 metres at 9.34 g/t Au and 13.6 g/t Ag from 90 metres.

The Tolmer silver discovery was initially identified in March 2025, marked by a maiden intersection of 6 metres at 4,747 g/t Ag from a depth of 46 metres.

“Our South Australian Tolmer silver discovery continues to yield broad, high-grade silver assays across an expanding footprint. With a shallow profile and having produced trial concentrates grading over 100,000 g/t Ag, Tolmer is already hinting at real potential for a low-cost, high-margin operation. We will share our further analysis in due course.”

— Alexander Scanlon, Managing Director & CEO

Barton is now progressing preliminary petrological analyses and structural interpretations for the prospect. The company plans to conduct full metallurgical testwork on Tolmer mineralisation utilising composite samples gathered from the recent drilling program.

Beyond Tolmer, Barton is preparing an updated Mineral Resource for its Tunkillia project following the completion of a 58,000-metre drilling program. That work supports an ongoing Pre-Feasibility Study for Tunkillia, which is targeted for completion in the first quarter of calendar 2027.

Read the full announcement: Numerous High-Grade Assays Extend Tolmer Silver Discovery