Exploration at Pinnacle Well Raises Questions on Scale and Next Steps for Drilling
Legend Mining’s latest exploration at the Pinnacle Well Project reveals compelling geophysical and geochemical signals that enhance gold prospectivity at the Alpha North prospect, setting the stage for targeted drilling.
- Geophysical surveys identify sulphide-related chargeable and resistive features over 700m strike
- 3D modelling underway to refine drill targets at Alpha North
- Rockchip sampling confirms significant gold anomalism with multiple high-grade samples
- Project area hosts extensive auriferous quartz veining and historic gold workings
- Further geophysical surveys planned to expand exploration scope
Exploration Advances at Pinnacle Well
Legend Mining Limited has released encouraging results from recent exploration activities at its Pinnacle Well Project, located just 25 kilometres north-northeast of Leonora in Western Australia. The focus has been on the Alpha North prospect, where a combination of geophysical surveys and rockchip sampling has revealed promising signs of gold mineralisation.
The company conducted Gradient Array Induced Polarisation (GAIP) and follow-up Pole-Dipole Induced Polarisation (PDIP) surveys over the area, identifying coincident chargeable and resistive anomalies interpreted as sulphide mineralisation at depths ranging from 75 to 200 metres. These features extend over a 700-metre strike length, suggesting a substantial target zone beneath the surface.
Geophysical Insights and 3D Modelling
The geophysical data, interpreted with the assistance of Southern Geoscience Consultants, has highlighted four distinct chargeability highs within the Alpha hornblende granodiorite host rock. Notably, the PDIP survey responses at depth are significantly stronger than the initial GAIP results, indicating potentially richer sulphide concentrations. Legend is now advancing pseudo 3D inversion modelling to better understand these subsurface features and to optimise drillhole placement for upcoming campaigns.
Supporting Geochemical Evidence
Complementing the geophysical work, Legend’s December 2025 rockchip sampling programme collected 56 samples from extensive quartz veining at Alpha North. Combined with historic data, 35 samples returned gold grades exceeding 0.1 grams per tonne, including 10 samples above 1 gram per tonne. Some historic rockchips showed exceptionally high grades, with values up to 91.9 grams per tonne. The presence of associated silver, bismuth, copper, and molybdenum further supports an intrusive-related mineralisation model.
The structural setting appears critical, with multiple vein orientations and regional shearing along the granodiorite-volcanics contact providing fluid pathways conducive to gold deposition. This structural complexity enhances the prospectivity of the area and guides future exploration efforts.
Strategic Outlook and Next Steps
Since acquiring the Pinnacle Well Project in mid-2025, Legend Mining has been methodically building geological and geophysical knowledge to unlock its potential. The recent results affirm the project’s promise and justify further investment in detailed surveys and drilling. Planned activities include completing 3D inversion modelling to refine drill targets at Alpha North, extending geophysical surveys to the nearby Pyrophyllite Hill prospect, and assessing additional geochemical data.
With no drilling conducted since 2014, these developments mark a significant step forward in exploring a region known for hosting major gold deposits such as Gwalia and King of the Hills. Legend’s systematic approach and integration of multiple data streams position it well to advance the Pinnacle Well Project towards resource definition.
Bottom Line?
Legend Mining’s methodical exploration at Pinnacle Well is setting the stage for a pivotal drilling campaign that could redefine the project’s gold potential.
Questions in the middle?
- How will the upcoming 3D modelling influence the final drillhole locations and depths?
- What scale and grade of mineralisation might drilling reveal beneath the identified geophysical anomalies?
- Could the Pyrophyllite Hill prospect yield similar or complementary mineralisation to Alpha North?
