Great Divide Mining (ASX:GDM) has restated a mineral resource estimate of 1.55 million tonnes (Mt) @ 3.41 grams per tonne gold (Au) for 169,700 ounces at its Adelong Gold Project in southern New South Wales.
Reported above a 1g/t Au cut-off grade, the resource spans the Challenger, Currajong, Caledonian, and Donkey Hill deposits. Challenger is the largest, hosting 663,000 tonnes @ 3.77g/t Au for 80,300 ounces.
Independent geological consultant GeoRes reviewed the estimates under the JORC Code 2012. The figures are not new and incorporate no drilling or exploration undertaken by Great Divide.
GeoRes originally prepared the estimates for former project owners in 2021, with the Caledonian estimate updated in 2022.
About 92,500 ounces, or 55% of the contained gold, is classified as measured or indicated. The remaining inferred resource contains 77,200 ounces.
CEO Justin Haines says the consolidated estimate provides a foundation for further work.
“The resource is distributed across several deposits within a historically productive goldfield, providing multiple opportunities for disciplined technical review and exploration,” Haines says.
The Adelong Goldfield has produced about 380,000 ounces from narrow quartz-vein systems, including approximately 130,000 ounces from the 1.4km-long Old Hill Line.
Great Divide gained ownership of Adelong when Challenger Gold Mines became its wholly owned subsidiary in February 2026.
The company says it plans verification work and will assess opportunities to improve confidence in and potentially grow the resource. The mineral resources are not ore reserves, and economic extraction is not assured.
Great Divide Mining is a gold, antimony, and critical metals miner, explorer, and developer with five Australian projects.
Write to France Pinzon at Mining.com.au
Images: Great Divide Mining
