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
Investor Presentation: RIU Explorers Conference (February 2026)
Altitude Minerals – Investor Presentation
Drilling Supports Interpreted NW Extension of the Macquarie Arc, Byrock Project, NSW
This first-ever drillhole at Target T55 (EL9746), Byrock Project, achieved a key objective — confirming the presence of a porphyry intrusive system beneath cover in a Company interpreted NW extension of the Macquarie Arc, NSW
Altitude Advances Earn-in on Positive Air-Core Results
Positive Proof-of-Concept Drill Results have validated the geological model and
confirmed the prospectivity of the target area to host Cu-Au porphyry style deposits
Altitude Appoints Principal Geologist USA
Altitude Minerals Ltd is pleased to announce the appointment of Mr Gabe Graf as Principal Geologist – USA, effective immediately.
Quarterly Activities Report: December 2025
Catch up on all the latest Activities with this Quarterly Report
Exploration Update: Final Report for 2025
An update on the exploration work and plans for Altitude’s projects for December and into 2026