Altitude Minerals Ltd (ASX: ATT) provides a final exploration and drilling update for 2025, following an active and highly productive year across the Company’s Heavy Mineral Sands, Copper-Gold, and Silver-Gold portfolios in Australia and the United States.
The Managing Director has just returned from a field trip to Nevada, where the Company completed further drill-target refinement at the Firenze Silver & Gold Project, progressed logistics and contractor discussions, and reviewed multiple advanced gold, silver and copper opportunities with potential to complement the existing project pipeline.
2025 has been a transformational year for Altitude Minerals, with a strong pipeline of drill-ready targets established and three drilling programs completed in the last months of the year. The Company enters 2026 with momentum, defined drill programs, and multiple near-term catalysts, including recent positive HM results, pending assay results and upcoming drilling.
Eromanga Basin, South Australia
Eromanga HMS Project
December activities
- Positive results reported in ASX Announcement 15/12/2025 “HMS Intersected in first drilling program Nilpinna Target
Upcoming Activities
- Follow up ground magnetic surveys to inform further drill targeting
- Anticipated grant of new tenements currently under application to strengthen the Company’s ground position
Byrock Copper Gold Project
December activities
- 419m of rotary mud & diamond core drilling completed testing the high-priority T55 Cu-Au Porphyry Target – East Byrock
- Seven priority pipe targets tested with 2,228m of low-cost aircore drilling
- All air-core samples submitted for assay
Upcoming Activities
- Core cutting and assay preparation
- Assay results expected in two batches
- Follow-up program design and prioritisation subject to results
Theseus Copper Gold Project
December activities
- Continued with administrative transfer of three key tenements from Rimfire Pacific
- Landowner engagement
Upcoming Activities
- Finalise tenement transfer paperwork
- Drill target ranking
- Permitting and planning for drill target testing
Firenze Silver & Gold Project
December activities
- Detailed structural mapping and drill-target refinement
- On-ground verification of access and logistics
- Integration of alteration mapping data to refine priority drill positions
Upcoming Activities
- CSAMT geophysical survey confirmed for January 2026
- Completion of soils and rock-chip interpretation
- Finalisation of drill collars and permitting
- 2,500m RC drill program planned for March-April 2026, subject to permitting and rig availability
Alaska, USA
December activities
- Relogging core and digitising of historical data
Upcoming Activities
- Consulting gold expert to report
MORE INVESTOR UPDATES
Exploration Update: Final Report for 2025
An update on the exploration work and plans for Altitude’s projects for December and into 2026
Heavy Mineral Sands Intersected in First Drilling Program at Eromanga HMS Project, S.A.
First wide-spaced drilling program confirms heavy mineral sands (HMS)
prospectivity of the Nilpinna Tenement – Eromanga Basin HMS Project, SA
Drilling Commenced on T55 Cu-Au Porphyry Target in the Macquarie Arc, NSW
Drilling has commenced to test the T55 Cu-Au Porphyry Target in the Company
interpreted NW extension of the Macquarie Arc, NSW
Exploration Update: December 2025
An update on the exploration work and plans for Altitude’s projects for December and into 2026
Investor Presentation: Pipeline of Targets (Noosa Conference Nov 2025)
Altitude Minerals – A pipeline of targets
Drilling Commenced Cu-Au Porphyry Targets in the Macquarie Arc, NSW
Drilling has commenced to test the seven highest-ranked shallow “pipe-like”geophysical features analogous to North Parkes and Cadia Cu-Au porphyry deposits