Challenger Gold (ASX:CEL) said exploration drilling began at the Hualilan gold project in Argentina, according to a Thursday Australian bourse filing.
The first two of four diamond drill rigs arrived on site and started drilling, the company said.
The initial program consists of a minimum of 35,000 meters of diamond drilling, with around 5,000 meters to be dedicated to geotechnical drilling to support the accelerated development of the phase 1 standalone Heap Leach project.
The company said it also launched a compilation and review of the extensive geophysical datasets covering the broader Hualilan property.