ECR Minerals (AIM:ECR), the AIM-listed gold exploration company focused on Australia, has identified a new drill-ready gold target at the Butterfly Creek Prospect within its 100%-owned Lolworth Project in North Queensland.
Laboratory fire assay of 500 soil samples delineated a north-northeast trending corridor stretching approximately 200 metres, with 16 samples returning above 100 ppb gold and a peak reading of 3,510 ppb (3.51 grams per tonne).
The target was invisible to earlier portable X-ray fluorescence surveys because the Butterfly Creek system shows little correlation with conventional pathfinder elements such as lead or silver, a departure from the Uncle Terry and Gorge Creek West discoveries drilled in December 2025.
Historical metal-detector prospecting along the ridge has already recovered high-grade gold-bearing quartz specimens directly above the newly mapped corridor, lending additional support to the surface geochemistry.
The anomaly branches into a second northeast-trending structure associated with quartz outcrop, and gold values extend beyond mapped quartz exposures, suggesting mineralisation continues beneath shallow cover.
"We've identified a well-defined mineralised corridor extending for around 200 metres, with gold values reaching 3.51 grams per tonne in soil samples," said Chief Geologist Adam Jones, adding that the result validates the case for laboratory fire assay as a complementary technique alongside pXRF.
ECR said it has begun planning detailed geological mapping and an initial drill programme to test the target.
