Leadville is a beautiful little shithole of a town surrounded by badass mountains. As was mentioned above, it's mostly old mountain men and donkeys. There's a little resort called Ski Cooper just out of leadville and LOADS of backcountry.
There are CMC campuses in Glenwood Springs, Steamboat, Breckenridge and Aspen (I think) which are all lovely places too. I live between Aspen and Glenwood right now and this valley is pretty awesome. Steamboat and Breck are both fun ski towns too.