Marmato Lower Mine Construction – February 2025 Update | Aris Mining

The historic Marmato Upper Mine is a narrow-vein mine using small scale, labour intensive mining methods and is currently producing approximately 25,000 ounces of gold per year. A large expansion project is underway with construction of a new Lower Mine to access wider porphyry mineralization below the Upper Mine. Learn more: https://aris-mining.com/operation/mar...