Blood Mountain is the third full-length studio album and major label debut by American heavy metal band Mastodon. The recording of the album finished in April 2006 and it was released on September 12 in the UK and September 12, 2006 in North America through Reprise Records. Like Mastodon's previous studio work Leviathan, Blood Mountain is a concept album. According to bassist Troy Sanders, "It's about climbing up a mountain and the different things that can happen to you when you're stranded on a mountain, in the woods, and you're lost. You're starving, hallucinating, running into strange creatures. You're being hunted. It's about that whole struggle. Guitarist Bill Kelliher considers this album to represent the earth element.