There are actually 4 mountains in the Aspen valley: Aspen, Snowmass, Highlands and Buttermilk. Buttermilk, the hill that the X-games was on, and Snowmass have had pipe and parks for a few years. Snowmass always had a great pipe. Aspen Mt. just allowed snowboarding this year, but I think they still did not have a park.
Jim, the guy that Park City hired, has been killing it there and all over for years. It is a significant loss for all of the Aspen mountains.