Once again, reviving this thread because Mastodon are just fucking awesome.
Decided to buy Blood Mountain on a spur of the moment decision, even though I'd never even heard Mastodon before. At first I wasn't too keen on them, but now they're one of my favourite bands. Highly recommend checking out the Workhorse Chronicles DVD too.
Been listening to a lot of them lately. Love 'em to death. Since my brain has been refreshed with Mastodon recently, my favourite songs of theirs are Call of the Mastodon, Deep Sea Creature, Workhorse, Trainwreck, Ol'e Nessie, Trampled Under Hoof, Elephant Man, Where Strides the Behemoth, Trilobite, Mother Puncher, March of the Fire Ants, Megalodon, Seabeast, Naked Burn, Hearts Alive, Iron Tusk, Blood and Thunder, Sleeping Giant, Circle of Cysquatch, Colony of Birchmen, This Mortal Soil, and once again all of Crack the Skye makes the list of my favourites. They don't have a single bad song in my opinion, incredibly awesome band.