GEO Exploration Limited presents a short video of our maiden drilling campaign. The feature includes Callum Baxter, Juno Project JV Partner & Geologist, and former Founder & Geologist of Greatland Gold PLC, along with Brian W.B. Chu, GEO Company Secretary & Non-Executive Director.
Geo Exploration Limited (AIM: GEO) has established itself as one of AIM’s most closely watched pure-play exploration stories in 2025. The company’s fortunes rest squarely on the Juno Project in central Western Australia, an intrusion-related gold system (IRGS) benchmarked against Greatland Gold’s Havieron discovery.
Heading into the Juno Project
We began the day at Parabadu airport, boarding a helicopter for a roughly 30 minute flight south to the Juno project. On site with me were geologist Callum Baxter and Tom. The mood was upbeat — a good day of field work ahead and a lot of preparation behind us.
How Juno came onto our radar
Callum first worked in this area in the late 1990s and immediately recognised its potential. Thirty years later the ground was largely vacant, so he revisited the region and over the last 12 months we have re-assembled the technical case for Juno. Callum was the originator of the prospecting idea for Juno and has driven the exploration model we are applying.
Geology: the Capricorn Orogen and our exploration model
The Juno project lies within the Capricorn Orogen, a large geological province in Australia that is prospective for very large mineral deposits. Historically the Capricorn Orogen has not been intensively explored, but it has produced some significant discoveries.
At Juno we are applying intrusion related gold models and looking for specific geophysical signatures that indicate potential intrusion related mineralisation. These signatures are what led us to prioritise the target and to commit to drilling.
The closest operating mine to Juno is the Abra zinc-lead deposit, roughly 100 kilometres to the southeast, which illustrates that mineral systems exist in the broader region.
Setting up a remote drilling campaign
Operating in a remote part of the Capricorn Orogen requires substantial logistics. We mobilised caravans, generators, trucks and earth‑moving equipment and prepared both the camp and the drill rig area carefully. Working with a well-established contractor was important to ensure safety and efficiency.
Drilling strategy: why we chose diamond core
For Juno we selected diamond drilling. The decision was driven by the size and expected depth of the target. Diamond drilling produces solid, intact core samples which allow detailed geological logging and more confident assessment of mineralisation.
Types of drilling and typical depths
- Diamond drilling: Produces continuous core, ideal for deep, high‑confidence holes. Our program contemplates deep holes up to around 1,000 metres on this target.
- Reverse circulation (RC): Suited to shallower targets. Typical practical depths are in the order of a few hundred metres, commonly up to 200 to 400 metres depending on conditions.
- Air core: Generally used for very shallow reconnaissance drilling, often up to around 200 metres in favourable conditions.
Diamond core gives us the ability to examine rock textures, structures and alteration with much greater resolution than RC or air core. That greater detail improves geological interpretation and helps pinpoint zones of mineralisation.
On the drill site
Our contractor, a first class driller referred to as DH1, is running two 12 hour shifts with three operators on each shift to maintain good production. The operation is set up for safety and continuity so we can achieve the planned metreage efficiently.
“We’re quite confident about what we have beneath the ground and that’s why we want to see the exact composition of the rocks beneath the ground to find the mineralisation with higher confidence.”
What we expect next
With the rig turning and core coming to surface, the next steps are thorough geological logging, sampling, and laboratory assay work. Those results will tell us whether the geophysical signatures and geological model translate into economic mineralisation.
We are excited about the potential at Juno and look forward to sharing the results as they come in. This maiden drilling campaign is a major milestone for the project and an important test of our intrusion related gold model in the Capricorn Orogen.
