Projects Overview

Great Boulder’s gold portfolio is centered on two large projects in the Northern Murchison region of Western Australia: the high-grade Side Well Gold Project at Meekatharra and the historic Peak Hill Gold Project, located 100km to the north.

Side Well hosts a combined Indicated and Inferred Mineral Resource of 1.02 million ounces of gold at 2.0g/t Au. Adjacent to the ~2 million ounce Paddy’s Flat operation owned by Westgold Resources Ltd and less than 25km from Westgold’s Bluebird mill, Side Well covers an area of highly prospective geology that remained vastly under-explored over the years prior to Great Boulder’s arrival.

Since the commencement of exploration in August 2020 Great Boulder has defined a large gold system spanning two main corridors. The Central Corridor includes the Mulga Bill and Eaglehawk deposits, while the Eastern Corridor contains more than 22km of gold and pathfinder mineralisation including the Ironbark, Saltbush and Golden Bracelet discoveries.

In May 2026 Great Boulder expanded its Murchison footprint with the acquisition of Peak Hill from Westgold Resources. Peak Hill is an historic gold field with more than 900,000oz of past production and a current JORC 2012 Mineral Resource of 481,000oz at 1.6g/t Au across five deposits. With granted mining leases, established infrastructure and an Ore Purchase Agreement with Westgold, Peak Hill provides a clear pathway to near-term production.

Together, Side Well and Peak Hill provide Great Boulder with a combined gold resource base of approximately 1.5 million ounces, significant exploration upside and multiple development pathways. The Company is focused on resource growth while advancing key deposits towards production.

With an experienced technical team supported by leading consultants the Company applies modern geological, geochemical and geophysical exploration techniques in the field to maximise capital efficiency and exploration success.

The Wellington Project is a greenfields exploration area located 140km west of Wiluna in the Earaheedy Basin. Recent work by Rumble Resources and Strickland Metals shows the basin has potential to become a world-class zinc-lead province.