Legacy Minerals Launches First Modern Drilling at Emu Copper-Gold Target

Legacy Minerals Targets Untapped Copper Potential at Emu

Legacy Minerals (ASX:LGM) has mobilised a diamond drill rig to the Emu Copper-Gold Prospect, initiating an 8-hole, 4,000-metre campaign that represents the first modern drill test of this historically significant target in northern New South Wales. The Emu Prospect, last drilled around 50 years ago, lies within the Mt Carrington caldera, a prolific gold-silver-copper district hosting a 1.2 million ounce gold equivalent (115 million ounce silver equivalent) Mineral Resource.

The program aims to test two distinct targets defined by recent airborne Mobile MT geophysics: the Emu Porphyry Core, interpreted as a deep intrusive body, and the Emu Alteration Halo SE, a shallow silicified zone adjacent to the core. Copper is the primary focus, reflecting Emu's history as one of the largest copper producers in the district and supported by historical drill intercepts including 18.9 metres at 5.8% Cu and 10.1 metres at 7.26% Cu.

Drilling Designed to Unlock New Discoveries

The drilling campaign is approved for up to eight holes, each reaching depths of up to 500 metres across five drill pad sites. The program is expected to progress over the next three months, with further follow-up drilling planned to refine and expand the targets. Legacy Minerals’ CEO Christopher Byrne emphasised the strategic importance of Emu, noting the integration of historical data with cutting-edge geophysics to define compelling porphyry-epithermal targets that could materially grow the Mt Carrington resource base.

Emu is one of three high-priority regional targets within the Mt Carrington Project, alongside Mascotte and Battery prospects, both of which offer additional avenues for resource expansion. The company’s dual-track strategy balances discovery drilling with ongoing development efforts, aiming to leverage the caldera’s extensive mineralisation potential.

Regional Geophysics Supports Scale and Depth

The Mt Carrington caldera spans approximately 150 square kilometres and is characterised by a series of low-sulphidation epithermal Au-Ag-Cu-Pb-Zn deposits. Recent Mobile MT surveys have revealed deep conductive structures linking known deposits and untested prospects, suggesting significant scale and depth potential. Emu sits adjacent to a key conductivity lineament interpreted as a major hydrothermal fluid pathway, bolstering the case for a sizeable porphyry system.

This geophysical insight complements historical mining and soil sampling data, which identified a broader area of copper mineralisation beyond the original Emu Creek copper mine workings. The current drilling campaign will be the first to test these modern targets, potentially unlocking new zones of mineralisation that have remained underexplored for decades.

Next Steps and Broader Project Activity

As drilling progresses, Legacy Minerals will integrate assay results with geological and geophysical data to refine targeting and assess resource potential. Concurrently, the company is advancing activities at the Mascotte Prospect, including follow-up drilling and ground geophysics, while preparing for further approvals and site works at Mt Carrington and White Rock prospects.

This drilling campaign aligns with recent approvals for an 8,000-metre program at Mt Carrington, which also includes testing at Mascotte, highlighting the company’s commitment to expanding its footprint in this richly endowed district. The outcomes from Emu will be closely watched as they could materially influence the project’s resource profile and development trajectory.