From The West Australian news: https://thewest.com.au/business/public-companies/tietto-bumps-up-abujar-gold-resource-to-383-million-ounces-c-10392329
"Artisanal surface mining occurs in several areas of the resource from eight to 15m in depth and while they are not considered material to the resource, the fact they exist in unexplored areas provides further exploration encouragement. "