Dreadnought Resources Confirms High-Grade Gold Mineralisation with Infill Drilling at Star of Mangaroon
Dreadnought Resources (ASX: DRE) has confirmed shallow, thick, and high-grade gold mineralisation from surface with the final infill drilling results from its Star of Mangaroon gold deposit in Western Australia.
The highlight was a 15-metre intersection grading 20.5 grams per tonne gold from surface, including 2m at 148g/t from 4m, while other strong results included 9m at 14.7g/t gold from 42m and 12m at 20.6g/t gold from 3m.
The company says the assays will underpin an updated resource and mine plan due later this month, and it has already scheduled follow-up drilling at the deposit.
High-Grade Gold Confirmed at Surface
Dreadnought reported assays from 14 reverse circulation (RC) holes drilled across the central Star of Mangaroon lode, each of which intersected the targeted structure, with multiple thick and high-grade gold zones encountered from shallow depths.
Several holes also confirmed mineralisation previously thought to have been mined out, as well as new high-grade zones at depth and along strike.
Managing director Dean Tuck said the results show that the lode system is more extensive than originally interpreted.
He noted that the drilling had confirmed that the mineralisation extends from surface, which should enhance both the resource estimate and overall project economics.
Resource Update and Mine Planning
The Star of Mangaroon currently hosts a resource of 23,300 ounces at 12.8g/t gold, with 83% already in the indicated category, and the company expects a material upgrade to this inventory following incorporation of the new results.
Dreadnought is preparing a revised mine plan alongside a broader study that will factor in the newly confirmed higher grades and thicknesses, and expects to release both the updated resource and the mine plan in September and October 2025.
The company holds a first right to negotiate development with Black Cat Syndicate (ASX: BC8), and has flagged that the combination of shallow mineralisation and strong grades could support a near-term open-pit operation with attractive economics.
RC Drilling to Begin Soon
Dreadnought is about to begin a new 5,500-metre RC program this month to target deeper extensions and northern zones of the Star of Mangaroon, and will also follow up on encouraging results from nearby prospects including Steve’s Reward, Pritchard’s, and Lesgo.
Exploration will continue across the broader Mangaroon project, where Dreadnought has identified multiple camp-scale targets such as Bordah, High Range, Minga Bar, Midday Moon and Cullens.
The company will also progress metallurgical test work, permitting, and commercial discussions to advance the project toward production.
Mr Tuck said the company remains confident that Mangaroon can deliver significant growth.
“These intercepts have resulted in thicker and higher-grade intercepts across the lode and importantly, confirm that the high-grade lode comes to surface,” he said.