ESGold (CSE:ESAU) has begun a 70km2 ambient noise tomography survey at its Montauban Gold-Silver Project in Québec, marking the largest geological investigation in the project’s history.
The expanded program represents a seven-fold increase from the company’s initial 10km² survey completed in 2025, which identified a mineralised corridor extending to 900m depth across a 2km strike length.
CEO Gordon Robb says the new program aims to better understand the project’s broader geological framework.
“Our initial ANT survey and integrated 3D model revealed a deep and expanding mineralised corridor extending to approximately 900 metres and over at least two kilometres of strike,” Robb says.
“Critically, the system widened at depth and remained open where the survey ended.”
The company’s previous survey formed the basis of an integrated 3D geological model, showing mineralised architecture significantly deeper than historical drilling, which was largely confined to depths of about 50m.
The new survey will use Caur Technologies’ ultra-sensitive geodes, combined with artificial intelligence-driven modelling that integrates historical drill data and satellite-assisted geophysics.
ESGold plans to incorporate the survey results into an updated predictive 3D geological model to refine high-priority step-out drill targets planned for 2026.
The program runs parallel to the company’s development timeline, with production at its fully permitted processing facility anticipated to begin in 2026.
Montauban has historically produced gold, silver, zinc, and lead from multiple shallow zones, with the deepest historical holes reaching approximately 250m.
ESGold says this survey marks the first time in the project’s 110-year history that a consolidated land package of this scale has been systematically evaluated under a single operator using modern deep-penetrating geophysical tools.
Edited by Adam Orlando.
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Images: ESGold
