Mastodon will unleash their single 'The Motherload' on a special, limited-edition 12 inch vinyl picture disc, and they'll be playing 'Letterman' on Oct. 27.

Gould Construction Superintendent and Rifle resident Kent Olson, left, and Gould worker Jesse Steele of Palisade discuss mastodon fossils being unearthed at a Snowmass Village excavation site ...

'The Motherload' is Mastodon's second track from their 2014 full-length, 'Once More 'Round the Sun,' and the third official single released by the band. The video has a lot of weird stuff going on ...

Mastodon released the album Once More ‘Round The Sun this past summer, and now they’ve got a new clip for “The Motherload,” which is not your typical metal video. There are some fantasy ...