Mountain guide since 1987, he has climbed the main summits accomplishing some of them solo. He has also open new routes. For the Italian Alpine Club, he is in charge of the direction of the high altitude Alpine routes maintenance. On his Alpine History, he has climbed all the 14 Highest World Summits all without supplement of oxygen. He has also climbed the north-west corner of the Ama Dablam, Nepal, open a new route on the Aguille Poincenot, South America, climbed the Huascaran, and attempted to climb the Horbein Couloir and the West face of Makalu. In 2003 he has also participated in a commemorative expedition for the fiftieth anniversary of the first K2 expedition. Mario collaborates with CRISPI® on product research and development.