Kalamazoo Logs 20m at 19g/t Gold From 2m at Mt Olympus Resource Program
Key Takeaways
- The standout intercept of 20m @ 19g/t Au from just 2m depth in KARC0206 demonstrates that high-grade feeder structures extend upward into upper stratigraphic units, not just the lower siltstone as previously interpreted.
- The completed 72-hole, 13,726m Resource Definition Drilling Program has returned 33 significant intercepts exceeding 50 gram-metres across the first 62 holes reported, confirming broad, high-grade continuity across Mt Olympus.
- Mineralisation has been intersected outside the current Mineral Resource envelope but within the conceptual Scoping Study pit shell, pointing to resource growth potential without requiring a larger pit footprint.
- An updated Mt Olympus Mineral Resource Estimate is targeted for Q4 2026, feeding directly into an Ashburton Pre-Feasibility Study targeted for Q1 2027 — both on track.
- The Ashburton Gold Project currently holds 1,436koz Au at 2.8g/t across four deposits, with new tenement applications set to expand 100%-controlled tenure to 519km².
Kalamazoo hits 20m at 19g/t gold from surface at Mt Olympus
Kalamazoo Resources (ASX: KZR) has returned 20m @ 19g/t Au from just 2m depth in the final batch of results from its completed Mt Olympus Resource Definition Drilling Program at the 100%-owned Ashburton Gold Project in Western Australia. The standout intercept in KARC0206, alongside 69m @ 3.0g/t Au in KARC0207 and 43m @ 3.8g/t Au from surface in KARC0194, demonstrates both near-surface high-grade continuity and vertical extent of feeder structures across the deposit. Results feed directly into the updated Mineral Resource Estimate targeted for Q4 2026 and the Ashburton Pre-Feasibility Study targeted for Q1 2027.
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Headline intersections from the completed drilling program
The latest results from the now-complete 72-hole, 13,726m Resource Definition Drilling Program confirm broad, high-grade mineralisation both within and beyond the current Mineral Resource model. Drilling intersected mineralisation outside the resource envelope but within the conceptual Scoping Study pit shell, highlighting opportunities to enhance future mining inventory. Assays have now been received from 62 of 72 holes, with further results pending over coming weeks.
| Hole ID | Intersection | From (m) | Included High-Grade Zone | Significance |
|---|---|---|---|---|
| KARC0206 | 20m @ 19g/t Au | 2m | — | Near-surface feeder into upper units |
| KARC0207 | 69m @ 3.0g/t Au | 149m | 26m @ 5.2g/t & 7m @ 10g/t | Continuity in upper host sequence |
| KARC0194 | 43m @ 3.8g/t Au | Surface | 30m @ 4.8g/t & 8m @ 7.0g/t | Grade above block model |
| KADD0021 | 30m @ 5.7g/t Au | 193m | — | Depth continuity |
| KARC0204 | 44m @ 3.5g/t Au | 15m | 25m @ 3.6g/t | Broad near-surface mineralisation |
Across the first 62 holes reported to date, the program has returned 33 significant intercepts exceeding 50 gram-metres, confirming continuity of broad, high-grade mineralisation and increasing confidence in the geological model.
Why these results matter for the resource story
The 20m @ 19g/t Au from 2m in KARC0206 demonstrates that high-grade feeder structures extend upward from the lower siltstone unit into the upper stratigraphic units, including the principal interbedded conglomerate and sandstone sequence. Previously, the highest grades were interpreted to be concentrated closer to the main Zoe Fault and within the lower siltstone. The latest results show these sub-vertical quartz-sulphide feeder structures maintain exceptional grades as they extend into the upper host rocks.
Results confirm vertical and strike continuity of high-grade zones, increasing confidence in grade distribution across the deposit. Drilling has intersected mineralisation both within and beyond the current Mineral Resource envelope but within the conceptual Scoping Study pit shell, highlighting the potential to enhance future mining inventory. This distinction is material — the resource model is being refined, and these new intercepts sit in areas that could support resource growth without requiring a larger pit footprint.
Dr Ben Ackerman, Executive Director
“The standout intersection of 20 metres at 19 grams/tonne gold from just two metres beneath the surface in KARC0206 is particularly encouraging. It demonstrates that the high-grade feeder structures are not confined to the lower siltstone unit but can extend upward into the upper stratigraphic units while maintaining exceptional grades. We are now recognising increasing vertical and strike continuity in these high-grade structures across the deposit. Together with the broad mineralised intersections returned from KARC0207, KARC0194 and other holes, this is helping us develop a more complete understanding of the structural controls on mineralisation and the distribution of high-grade zones at Mt Olympus. As the geological model continues to mature, we are gaining greater confidence in both the continuity of the resource and the opportunities for further growth.”
Program by the numbers
- 72-hole, 13,726m Resource Definition Drilling Program — completed June 2026
- Assays received from 62 of 72 holes; remaining results pending over coming weeks
- 33 significant intercepts exceeding 50 gram-metres across the first 62 holes (four ASX releases)
- Drill spacing tightened to approximately 20m x 20m across key areas
- Aim: convert Inferred Resources to Indicated category, supporting future Ore Reserve estimation
Understanding feeder structures and gram-metres
A feeder structure is a channel through which gold-bearing fluids travelled during mineralisation. At Mt Olympus, these are sub-vertical quartz-sulphide zones interpreted to sit near or sub-parallel to the main Zoe Fault. They create higher-grade zones where fluids were focused. The latest drilling shows these structures extend upward from the lower siltstone into the upper conglomerate and sandstone units, maintaining exceptional grades as they do so.
Gram-metres is a measure of grade multiplied by downhole width. A 50+ gram-metre intercept signals a meaningful combination of thickness and grade — not just a narrow high-grade sliver. For example, 20m @ 19g/t Au delivers 380 gram-metres. This tells you the intercept is broad, high-grade, and likely to contribute meaningfully to the resource estimate. When intercepts exceed 50 gram-metres consistently, you are seeing continuity of mineralisation that can be modelled with confidence.
Broad, high-grade continuity from surface improves the odds of a larger, more confident resource and lower-cost early mining. Near-surface ounces mean lower strip ratios and faster payback, which matters when the company transitions from exploration to development.
The Ashburton Gold Project foundation
Mt Olympus is the foundation asset for potentially long-life Ashburton gold operations, according to CEO Andrew McDougall. The Ashburton Gold Project currently holds a Mineral Resource of 16.19Mt @ 2.8g/t for 1,436koz Au across four deposits: Mt Olympus, Peake, Waugh, and Zeus. The project historically produced 350,000oz Au between 1998 and 2004 and sits within the Nanjilgardy Fault Zone, approximately 35km south-east of Paraburdoo.
Recent tenement applications (E52/4508, E52/4509, E52/4594, E52/4610, E52/4611, and E52/4612) are expected to add 192km² to the project, lifting 100%-controlled Ashburton tenure to 519km².
- Mt Olympus: 12.24Mt @ 2.7g/t for 1,073koz
- Peake: 1.92Mt @ 3.4g/t for 210koz
- Zeus: 1.52Mt @ 2.5g/t for 121koz
- Waugh: 0.51Mt @ 1.9g/t for 32koz
Andrew McDougall, Chief Executive Officer
“The combination of exceptional near-surface grades, broad mineralised intervals and increasing geological confidence further strengthens Mt Olympus as the foundation asset for potentially long-life Ashburton gold operations. These results will be incorporated into the updated Mineral Resource Estimate and ongoing Pre-Feasibility Study, where the improved understanding of the high-grade structures has the potential to support resource growth and an enhanced future mining inventory.”
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What’s next — MRE, PFS and growth drilling
Kalamazoo is moving Ashburton from exploration toward development, with the improved geological model potentially supporting resource growth and an enhanced mining inventory. The roadmap ahead centres on two hard catalysts and ongoing growth drilling.
- Remaining assays (10 holes) released progressively over coming weeks
- Updated Mt Olympus Mineral Resource Estimate targeted Q4 2026 — on track
- Ashburton Pre-Feasibility Study targeted Q1 2027 — all major technical workstreams progressing
- Underground Growth Drilling underway beneath Mt Olympus, testing down-plunge and down-dip extensions of the A$4,000 pit shell
- Further drilling at the high-grade Peake deposit to test growth within the defined Exploration Target
The improved understanding of structural controls on mineralisation is increasing confidence in both the continuity of the resource and the opportunities for further growth. As the geological model matures, the company expects to convert Inferred Resources to the Indicated category, supporting future Ore Reserve estimation and delivering key technical inputs for the Pre-Feasibility Study.
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