I think it just depends. A lot of ski areas are right along interstates, like I-90 in Washington, so if you were going to run a rail line along I-90 between Sea

I think it just depends. A lot of ski areas are right along interstates, like I-90 in Washington, so if you were going to run a rail line along I-90 between Seattle and Yakima/Spokane, it might be economical to build a stop at Snoqualmie Pass. There are also often small towns and communities that might benefit from being connected to the bigger city by rail year round, like the Colorado mountain towns.