Section A – A’ planned RC drill holes (26PL03 – 05) through the P38 Target, Byrock Project – drill tested with shallow aircore holes (ASX 6/2/2026) in November 2025 – prospective for a porphyry system. 3D inverted magnetic susceptibility shell 3000 x 10-5 SI (red) (ASX 7/5/2025) and 0.05 g/cc inverted density [gravity] shell (blue)
Highlights
- Compelling RC drill targets have been confirmed at the Byrock Project to test for
Macquarie Arc pencil (pipe-like) porphyry deposits - Processing of newly acquired gravity and passive seismic data has been completed, and
integrated with 2025 magnetics data and alteration studies to predict depth to target and
optimise RC drill collar locations - The Byrock Project is a Company interpreted north-west segment of the Macquarie Arc, which hosts the economic Cu-Au porphyry Cadia and North Parkes mines to the south. These deposits exhibit “pipe-like” geophysical features with dimensions analogous to targets within the Byrock Project
- Drill permits submitted and expected in late May 2026, with RC drill rig availability confirmed for planned drilling in June 2026
I am pleased to confirm final RC drill collar locations for our three highest-priority Cu-Au porphyry targets at Byrock in the Macquarie Arc, NSW. These targets reflect disciplined screening of multiple prospects using geophysics, air-core drilling and alteration studies, narrowing our focus to the most compelling opportunities along an interpreted extension of the Macquarie Arc. This drilling represents a decisive step in testing for concealed porphyry systems under shallow cover; exactly the type of generative exploration that drives new discoveries on the margins of proven world-class mineralised belts.
Managing Director Duncan Chessell
Location map showing Altitudes Pipe Targets, T55 Target and tenements relative to Inflection Resources
Latest Investor Updates

Quarterly Activities Report: September 2026
Catch up on all the latest Activities with this Quarterly Report

Altitude Minerals Annual Report (2026)
Altitude Minerals is pleased to advise that it has successfully received firm commitments from sophisticated and professional investors to fund drilling at the gold-silver Firenze & Winnemucca Projects in Nevada, USA, business development and working capital.

Altitude Completes Successful $1.2m Placement
Altitude Minerals is pleased to advise that it has successfully received firm commitments from sophisticated and professional investors to fund drilling at the gold-silver Firenze & Winnemucca Projects in Nevada, USA, business development and working capital.

Altitude Appoints Dr Paul Kitto as Non-Executive Director
Altitude Minerals Ltd is pleased to announce the appointment of Dr Kitto, who has held senior leadership roles with Newcrest Mining and Gold Fields and has led exploration programs across Africa, Australia, Papua New Guinea and the former Soviet Union.

Byrock Project Drilling Results
Assays have been received for the completed RC drilling.

Exploration Update: August 2026
An update on the exploration work and plans for Altitude’s projects