Figure 1. Arabana traditional owners heritage survey on Nilpinna EL7071 has cleared all planned drill targets
Eromanga Basin, South Australia
Eromanga HMS Project
- 4,000m HMS air-core drilling program to commence in mid-September
- Drill permits received on time from the SA Department for Energy and Mining (DEM)
- Heritage clearance survey completed on time by Arabana traditional owners
– all planned targets approved EL7071, EL7072 and EL6195 - Drilling to be undertaken on the Nilpinna and Douglas Creek Tenements, see map below
- Drill contractor secured – McLeod Drilling
- Altitude’s expert Heavy Mineral Sands (HMS) Consultant, Ian Warland to oversee the two week
drilling program in the field
Macquarie Arc, NSW
Byrock Copper Gold Project
- Field work completed on the “the Pipes” prospects which are prospective for Cu-porphyry deposits in a newly interpreted segment of the Macquarie Arc
- Final data analysis and target ranking to be completed in September
- NSW Government co-funding drilling grant decision expected by 30 September
- Technical review panel to decide on a potential November RC drill program
Theseus Copper Gold Project
- Application ELA6903 has been granted as EL9805 – 100% owned by Altitude Minerals
- Positive field visit to meet landowners in the area and discuss access agreements
- Half of the project is subject to a 6-month exclusive Option to purchase the tenements from Rimfire Pacific Mining, subject to DD and ministerial approval for transfer
- Further technical due diligence was undertaken, including a review of the historical core at the
NSW Core library, building out a 3D model, and historical data analysis - NSW Government co-funding geophysics and drilling grant decision by 30 September
- Technical merit decision to purchase Rimfire tenements to be determined
Figure 2. Nevada site visit
Project Generation Activity
- Multiple site visits were recently completed in Nevada, with a focus on epithermal-style gold silver-antimony projects
- Technical due diligence is ongoing on multiple properties in the USA
- The Altitude team conducted a site visit to recently staked claims near Delta Junction,
Alaska, prospective for gold. Our team recovered historical core, which requires reboxing
before proper review and collected check samples for assay from historical trenching and
outcrops. Fortunately, we also obtained paper records of nearly all historical exploration that
were previously thought to be lost. The digitisation of paper records is ongoing. Once the
check assays are returned, core checked, and the historical review is completed, a technical
report will be released to the market, and decisions on next steps will be made. This will take
a few months to complete.
We are pleased to be drill-ready for our very first air-core drill program on our exciting Eromanga Basin HMS Project in South Australia. The opportunity to be the first company to drill test a recently identified exploration space prospective for critical minerals is what green fields exploration is all about.
The Company has also moved to stake prospective HMS open ground elsewhere in the Eromanga Basin. This places Altitude with an early mover advantage to build on any success in the upcoming drill program around William Creek on the Nilpinna and Douglas Creek Tenements.
More broadly, in NSW and the USA, I am also pleased to see a quality pipeline of potential drill targets emerging and being validated through quality fieldwork. All drill targets will ultimately be ranked against other projects held by Altitude for consideration in determining the best capital allocation across the Company’s projects.
Duncan Chessell
Managing Director
READ THE FULL ASX RELEASE
LEARN MORE ABOUT HEAVY MINERAL SANDS
WITH THE ALTITUDE MINERALS PODCAST
MORE INVESTOR UPDATES
Quarterly Activities Report: June 2026
July 14, 2026
Catch up on all the latest Activities with this Quarterly Report
Exploration Update: July 2026
July 1, 2026
An update on the exploration work and plans for Altitude’s projects
Drilling Commenced At Byrock Copper Gold Project, Macquarie Arc – NSW
June 12, 2026
Drill permit issued and drilling rig contracted for 2,300m RC program to test three highest priority Pipe Targets
Altitude Minerals Podcast
EP02: Copper Gold Porphyry
June 12, 2026
In the latest episode of the Altitude Minerals Podcast, Managing Director Duncan Chessell is in conversation with world-leading geochemist and in-house porphyry expert Professor Bruce Schaefer to explore these elusive and valuable mineral systems, which account for roughly three-quarters of the world’s copper and a fifth of its gold.
Exploration Update: June 2026
June 3, 2026
An update on the exploration work and plans for Altitude’s projects
Drilling Permits Issued & Rig Contracted for Byrock Project
May 25, 2026
Drill permit issued and drilling rig contracted for 2,300m RC program to test three highest priority Pipe Targets