There are two artists that use this name: 1. A rock band from the United States 2. An electronic music producer from Romania 1. Mountain is an American rock band mainly active in the early 1970s. The band still tours and had a number of UK and US dates scheduled in 2006. The classic-era lineup of the group was Leslie West on guitar, Felix Pappalardi on bass, Corky Laing on drums (the original drummer was N. D. Smart), and Steve Knight on piano and organ.