Great Western Mining Corporation Plc (AIM: GWMO) has reported positive assay results from a machine-cut channel sampling programme at its Defender-Pine Crow Project in Mineral County, Nevada.
The strategic minerals exploration and development company said the results support the presence of a mineralised tungsten trend of around 3 kilometres ahead of its maiden drilling campaign.
Four new machine-cut channels completed in April 2026 returned significant tungsten mineralisation across the historic Dough God, Pine Crow and Widowmaker mine areas.
Channel C intercepted 27 metres grading 0.15% tungsten trioxide, including 11 metres at 0.25% tungsten trioxide. Channel D returned 5 metres at 0.12% tungsten trioxide, while Channel E intercepted 3 metres at 0.34% tungsten trioxide.
Channel F returned 18 metres at 0.15% tungsten trioxide, including 6 metres at 0.22% tungsten trioxide. The same channel also returned silver mineralisation across two intervals, including 2 metres at 17.6 grams per tonne silver and 2 metres at 10.1 grams per tonne silver.
Great Western said very low concentrations of potential penalty elements, including molybdenum, were encountered in the tungsten results, which is positive from a processing perspective.
Additional infill rock chip samples collected between the Defender Mine and the company’s M2 copper resource also support the interpretation of a 2 to 3 kilometre corridor of tungsten mineralisation.
Chief executive Ed Loye said the latest channel sampling had confirmed broad and significant tungsten mineralisation at the historic Dough God and Pine Crow mines.
He added that a further channel at the historic Widowmaker Mine, supported by new in-situ rock chip samples, had extended the tungsten trend a further kilometre west from Pine Crow.
“The channel and rock chip sampling results provide important guidance for our maiden drilling campaign beginning in a few weeks’ time,” Loye said.
The Defender-Pine Crow area contains a 3 kilometre skarn trend extending from Defender Mine through Pine Crow and Widowmaker to Great Western’s JORC-compliant M2 skarn copper resource. The company said each area occurs around 1 kilometre apart and is associated with contact zones between Cretaceous granitic intrusions and limestones of the Jurassic Dunlap Formation.
The company said detailed geological mapping, in-situ rock chip sampling and gravity geophysical surveying are helping refine the geological model ahead of a fully permitted 7,000-foot maiden reverse circulation drilling programme, which is expected to begin in the coming weeks.
Great Western said the latest results, together with soil sampling and geological mapping, will be used to refine drill targeting and support further exploration across the emerging tungsten corridor.
