Altitude Minerals to Drill 2,300m at Byrock Project in Mid-June

Drilling Permits and Rig Contract Finalised

Altitude Minerals Ltd (ASX:ATT) has secured a critical regulatory green light with a 2,300-metre reverse circulation (RC) drilling permit for its Byrock Project in New South Wales. Alongside this, the company has contracted a UDR1000 multi-purpose drilling rig from Resolution Drilling, setting the stage for a mid-June commencement of field operations. This marks a significant step toward testing three of the highest priority "pipe-like" geophysical targets identified within the project area.

Byrock Project Positioned in Macquarie Arc

The Byrock Project is interpreted by Altitude as a north-western extension of the Macquarie Arc, a geological domain renowned for hosting world-class copper-gold porphyry deposits like Cadia and North Parkes. The targets under investigation exhibit geophysical signatures analogous in scale and shape to these established mines, raising the prospect of a concealed porphyry system beneath shallow cover. This kind of generative exploration is pivotal in the hunt for new copper and gold resources amid growing global demand.

Altitude’s Managing Director Duncan Chessell emphasised the importance of this drilling program, stating it represents "a decisive step in testing for concealed porphyry systems" along a proven mineralised arc. The project is operated in partnership with Nimrod Resources Ltd under an earn-in joint venture agreement, leveraging combined geological expertise to optimise exploration outcomes.

Operational Collaboration and Next Steps

The drilling campaign will be run by Nimrod Resources alongside Altitude’s geology team, reflecting the collaborative nature of the earn-in JV agreement announced earlier this year. Earthworks are scheduled to commence shortly, with drilling planned to kick off by mid-June 2026, pending final site preparations.

This initiative builds on recent advances at Byrock, including the identification of compelling drill targets and positive aircore results that supported the extension of the Macquarie Arc interpretation. The program also follows a successful capital raise earlier in May that bolstered Altitude’s funding position to advance exploration activities across its NSW and Nevada projects, including the Byrock copper-gold targets.

Altitude’s systematic approach; combining geophysics, petrology, and targeted drilling; aims to unlock the next generation of copper-gold discoveries in a region with proven mining pedigree. The upcoming drill results will be closely watched as they hold the potential to materially impact the company’s valuation and exploration trajectory.