Key Highlights

  • Extensional drilling has continued the gold mineralisation below the 2.1Moz Mt York resource along a 4.2km trend.
  • Hole 26MYRCD086 returned 68m at 1.00 g/t Au from 347m, outside the current resource envelope.
  • Infill drilling is expected to support an improved resource classification, with 27 holes still awaiting assays.
  • A new Mineral Resource Estimate and maiden Ore Reserve are scheduled for completion during CY2027.

Pilbara Gold Limited (ASX:PGL) has reported the latest results from its 2026 drilling program at the 2.1 million ounce Mt York gold project in Western Australia’s Pilbara. The update dated 11 November 2026 covers two linked objectives: infill drilling to improve confidence in the existing resource, and extensional drilling that tests the banded iron formation beneath and along the resource.

Extensional drilling below the resource

Mt York hosts 2.1 million ounces of gold in a continuous 4.2km long banded iron formation. Extensional drilling along and beneath that trend has returned wide zones of mineralisation at about 1 g/t gold. Hole 26MYRCD086 at Main Hill returned 68m at 1.00 g/t Au from 347m, including 15m at 2.56 g/t from 357m. Hole 26MYRCD084 extended mineralisation about 180 metres below the 2026 resource pit shell, returning 44m at 1.00 g/t from 417m.

Main Hill Extension also returned results outside the resource envelope, including 5m at 5.72 g/t Au from 127m, with 1m at 16.92 g/t from 128m, and 15m at 1.26 g/t from 242m. The company said the resource remains open at depth along the full length of the trend.

Infill drilling and resource classification

Infill holes within the existing resource envelope returned wide intervals, including 42m at 1.37 g/t from 143m (26MYRCD103) and 54m at 1.01 g/t from 254m (26MYRCD096). The company said these results should support an improved resource classification in the next estimate.

The company’s structural modelling, drawn from oriented core, suggests the Main Hill banded iron formation is thickened by folding and faulting, with higher-grade mineralisation within the folds. That interpretation guides the deeper drilling plan but remains an interpretation until the full dataset is in.

Timetable and what remains open

Assays are pending for 27 drill holes, most of them from Main Hill Extension, and drilling continues at depth at Main Hill and Main Hill Extension. The company expects the 2026 results to inform the new Mineral Resource Estimate for the Pre-Feasibility Study.

The new estimate and a maiden Ore Reserve are scheduled for CY2027, and the Pre-Feasibility Study is on track for delivery in 2027. Geotechnical drilling, metallurgical test work and process engineering are progressing. Whether the new intercepts add ounces will depend on the final estimate and the cut-off grades applied to it.

Final Word

Pilbara Gold has extended the discussion around Mt York beyond the existing 2.1 million ounces, into the depth of the banded iron formation. For shareholders the key points are the 27 pending assays, the classification changes from infill work and the 2027 resource estimate, which will show how much of the deeper mineralisation can be counted as resource.