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Highlights
- King River Resources has concluded the Phase 1 stockpile drilling at the Mindoolah Gold Project.
- The company has commenced RC drilling beneath historic pits and mine shafts.
- Initial gold assay results from the stockpile drilling are expected in a month or early August 2026.
- An airborne magnetic survey has been completed to support future exploration targeting.
- Ongoing geological mapping and field observations have identified additional structural and lithological targets, expanding the Phase 1 exploration programme.
- Multiple exploration milestones have been achieved ahead of schedule, positioning the Mindoolah Gold Project for further target generation and resource evaluation.
King River Resources Ltd (ASX:KRR) has provided an exploration update for its Mindoolah Gold Project , located in Western Australia's Murchison Province . The company has completed the initial phase of systematic drilling across historical waste dumps and stockpiles, and high-resolution airborne magnetic survey while advancing exploration drilling beneath historic mining areas.
Historical Stockpile Drilling Programme Completed
The company has completed the initial phase of reverse circulation (RC) drilling across the historical waste dumps and stockpile , part of the company's Phase 1 exploration activities at the Mindoolah Mining Centre.
The programme is designed to establish gold distribution, establish baseline grades and evaluate material variability across priority historical waste dump and stockpile inventories.
A total of 1,583 metres has been drilled across 169 holes , with drilling completed over Excelsior, Cundy and Mindoolah Main Reef . The samples are being readied for assay laboratory for gold analysis, with initial assay results expected by the end of July or early August 2026 .
Exploration Drilling Moves to Historic Pit Targets
Following completion of the surface evaluation of the historical stockpiles and waste dumps, the light mobile RC drilling rig has transitioned to test reconnaissance holes and shallow exploration extensions beneath historical pits and shafts .
The drilling campaign is targeting areas adjacent to and below 1980s open-cut pits and early 1900s mine shafts , with drill holes designed to reach depths of up to 120 metres .
King River stated that this phase aims to validate historical geological information, assess the continuity of interpreted gold lodes and test structural corridors beneath priority targets including Excelsior, Cundy, Bertram's and Mindoolah Main Reef .
The company also reported that ongoing field observation, geological logging, review of the exposed mineralised structures and pit-wall mapping have identified numerous additional structural and lithological targets .
Target generation remains underway, with new geological information continuously incorporated into the Phase 1 drilling program. Additional RC holes are being designed to evaluate prospective structures, lithological contacts and potential extensions of known mineralised lodes.
Airborne Magnetic Survey Completed
King River has also completed the low-altitude airborne magnetic survey across the Mindoolah Project area.
The company is awaiting the processed geophysical dataset from specialist contractors, which is expected to be delivered in the coming week.
Once received, the high-resolution magnetic imagery will be integrated with lithological and assay information to assist in identifying structural displacements, refining target generation and guiding future deeper drilling across the project.
According to the company, several exploration milestones have been achieved ahead of schedule. Historical waste dump drilling has been completed, sample shipments to the laboratory are underway, and the airborne magnetic survey's data collection phase has concluded. At the same time, drilling has commenced on priority exploration targets beneath historic pits and shafts. These milestones position the company to unlock the value of the Mindoolah Mining Centre.
KRR shares were trading at AUD 0.052 per share at the time of writing on 2 July 2026.
