Highlights

  • Hole AS-26-827 returned 10.0m at 8.28g/t gold, including 4.0m at 15.80g/t gold.
  • Hole AS-26-826 returned 9.0m at 5.20g/t gold, including 1.5m at 27.00g/t gold.
  • Gold mineralisation extends beyond the main Piché ultramafic host into surrounding rocks.
  • An updated Rouyn Mineral Resource Estimate is targeted for Q1 2027.

Lac Gold Limited (ASX:LAC) has reported further assay results from nine diamond drillholes at the Astoria area of its 100%-owned Rouyn Gold Project in Québec, Canada. The results have identified additional mineralisation and are prompting a revised geological interpretation ahead of an updated resource estimate.

Key Drilling Results

The standout result came from hole AS-26-827, which returned 10.0m at 8.28g/t gold from 195.0m, including 4.0m at 15.80g/t gold. This sits within a broader zone of 50.0m at 2.03g/t gold from 160.5m. The company said this result is prompting a revised interpretation, suggesting mineralisation may be more extensive than previously modelled.

Other results included 9.0m at 5.20g/t gold in AS-26-826, 31.55m at 1.39g/t gold in AS-26-824 and 25.5m at 1.02g/t gold in AS-26-819. Hole AS-26-825 returned 10.0m at 1.86g/t gold from 327.1m, an intersection located entirely within sedimentary rocks. All intersections are downhole lengths, and true widths are not yet established.

Geological Insights

The results show that gold mineralisation extends beyond the main Piché ultramafic host into surrounding sedimentary and volcanic rocks. The deposit sits within a structurally controlled orogenic system on the Cadillac–Larder Lake Break in Québec's Abitibi gold region.

Managing Director Andrew Stocks said, "These are very strong results, which highlight the potential for substantial growth." He added that "gold mineralisation extends beyond the mineralising unit into the surrounding rocks."

Resource Update and Next Steps

Rouyn currently hosts a Mineral Resource of 1.666Moz gold at 3.28g/t, including 976koz in the Indicated category. An updated estimate is being prepared by Measured Group, incorporating the 2026 drilling and revised geology, with completion targeted for Q1 2027.

The 2026 program has drilled 81 holes for 32,519m, with assays received for 52 complete holes and 14 holes at the laboratory. Lac Gold will continue diamond drilling at Astoria, targeting extensions of known mineralisation and new geological settings through step-out and down-dip drilling.

Key Takeaways

  • High-grade intercepts at Astoria support the potential for resource growth at Rouyn.
  • Gold mineralisation extends beyond the main ultramafic host into surrounding rocks.
  • A revised geological model is being incorporated into the resource update.
  • The updated Rouyn resource is targeted for Q1 2027.