Have they ever considered some sort of rail services up the Wasatch Canyons and into Park City?
I've was reading an article (unfortunately behind a paywall or I would post it here) talking about possible expanded rail service between Salt Lake and Denver in time for the Olympics in 34. They are currently doing some rail projects in Colorado One on the front range between Fort Collins and Colorado Springs and another that we are actually looking forward to which is expanded service up to Granby and on to Steamboat (actually out to Craig). I really think that we will actually use the train to go back and forth to Denver when we spend our winters out there.
I have used the light rail system in Denver and it is actually quite convenient to get into downtown (Union Station, Coors Field, Ball Arena). Utah's Light rail looks to be a similar system. One of the complaints I read about the proposed gondola was that it had no planned tie into any other transportation, a light rail spur obviously would. As far as the steepness or grade of the Canyons I'm not an engineer but there has been talk of constructing a line up the I-70 corridor which I believe is just as steep as the Canyon highways so it seems it would be possible.
I know that timewise the train is slow. We have made the drive between Denver and Salt Lake many times. Its about 8 hours. The train takes even more time but of course it's much more relaxing and better for taking in the views.
www.westernrailcoalition.com Western Rail Coalition has an interesting web site showing current and planned routes including spurs to Vail/Beaver Creek, Moab, and routes out of Salt Lake to Reno, Idaho and Las Vegas I could see using it for some of our skiing purposes in the future as we safari across the west.