Mt Malcolm Mines Completes 8 Drillholes, Plans 18-Hole Infill at Dumbarton
Mt Malcolm Mines reports promising drilling results at Golden Crown and prepares for an infill program at Dumbarton, aiming to establish maiden resource estimates and advance towards production.
- Eight RC drillholes completed at Golden Crown intersecting mineralisation consistent with models
- Bulk sampling at Golden Crown yielded 345.7 ounces of gold doré generating A$1.38 million revenue
- Preparation complete for 18-hole infill RC drilling program at Dumbarton to support maiden resource estimate
- Assay results expected within 4–5 weeks to inform updated geological models
- Development studies planned to evaluate mining and processing scenarios
Drilling Progress at Golden Crown
Mt Malcolm Mines NL (ASX: M2M) has reported encouraging progress in its Reverse Circulation (RC) drilling campaign at the Golden Crown Prospect, part of its 100%-owned Malcolm Project near Leonora, Western Australia. Since commencing on 17 May 2025, eight drillholes totaling approximately 800 meters have been completed. Early geological observations reveal significant quartz veining, silicification, iron oxide, and sulphidic alteration, hallmarks of the mineralised zones the company had anticipated based on previous modeling.
This phase of drilling is focused on testing down-plunge extensions of high-grade lodes, along-strike continuity, and deeper mineralisation beneath the bulk sampling pit. These efforts build on the 2024 bulk sampling program, which processed nearly 1,000 wet metric tonnes of mineralised material, yielding 345.7 ounces of gold doré and generating revenue of around A$1.38 million. This bulk sampling has been instrumental in validating grade continuity and metallurgical recovery, significantly de-risking the project’s near-term production potential.
Upcoming Dumbarton Infill Drilling
Following Golden Crown, Mt Malcolm plans to mobilise its rig to the Dumbarton Prospect, where all drill pads have been prepared for an 18-hole (~1,500m) infill RC drilling program. Dumbarton, located within the same Malcolm Project, has historic workings dating back to the early 1900s and previously returned notable intercepts such as 20 meters at 1.34 grams per tonne gold. The infill drilling aims to enhance the resolution of lode geometries, validate primary mineralisation, and support a maiden JORC-compliant Mineral Resource Estimate through tighter drill spacing.
Analytical and Development Outlook
Samples from Golden Crown are currently being logged and prepared for dispatch to SGS Kalgoorlie for 50-gram Fire Assay with MP-AES finish, with results expected within 4 to 5 weeks. These assay results will be critical in refining 3D geological models and guiding further drilling. Mt Malcolm also plans to conduct scoping studies to evaluate toll treatment options and open-pit mining scenarios, leveraging the project’s proximity to established infrastructure such as sealed roads, railways, power supply, and nearby processing facilities.
Managing Director Trevor Dixon emphasised the strategic importance of this drilling campaign, stating it represents a pivotal step toward establishing a solid resource base and advancing Mt Malcolm’s goal of becoming a low-cost, high-margin gold producer in the Leonora region.
Bottom Line?
As assay results and resource estimates approach, Mt Malcolm’s drilling campaign could reshape its production trajectory in a prolific gold district.
Questions in the middle?
- Will assay results confirm the high-grade continuity suggested by initial geological observations?
- How will the maiden resource estimate at Dumbarton influence Mt Malcolm’s development plans?
- What are the potential timelines and capital requirements for transitioning from exploration to production?
