According to the company, the 1.4km long trending silver-gold vein system is a prime target with intersections such as 11.0m @ 3.4 g/t Au & 386 g/t Ag.

Mariana chairman John Horsburgh said that the aim is to quantify the economic potential with this 4,000m campaign.

"Coupled with our flagship Las Calandrias gold project, this will enhance Mariana’s position as a leading exploration player in the Santa Cruz region with significant upside," Horsburgh said.

Mariana has an option to acquire the remaining 30% stake in Sierra Blanca, which is held by joint venture partner Iamgold.

Mariana is an exploration and development company focused in Argentina and Chile.