Targeting near-mine indications of high-grade quartz vein lodes HIGHLIGHTS High resolution survey over northern portion of EL 6502, which hosts the Challenger Gold Mine Targeting gravity anomalies indicative of structures similar to Challenger's high-grade gold lodes ADELAIDE, AU / ACCESS Newswire / December 18, 2025 / Barton Gold Holdings Limited (ASX:BGD)(OTCQB:BGDFF)(FRA:BGD3) ( Barton or Company ) is pleased to confirm the start of a high resolution airborne gravity survey surrounding its South Australi ...