LAST EDITED ON Apr-04-05 AT 07:14AM (MST)[p] That is a domestic pig someone probably put one in the freezer and that is what is left, they just dumped the bones. I have found those before in the woods. That is my guess.
This is no guess that is a pig I know because I had to study skulls for my Biology class but just how far out in the mountains are you? Its probably a dump from someones truck though but hey you never know you may have discovered one ellusive little critter there.
If you found it in one of your areas i know a butcher that dumps his bones in a couple of those canyons. Could be an option. Coyotes could have got a hold of it and ran around with it.