Originally Posted by valygrl
If you have extra time, I'd to through Glacier over Going to the Sun road and then find another train station over there.
Good idea. East Glacier Station has checked baggage hours from 8:45 a.m. to 5 p.m.. If you have the time you could ride from Whitefish to Sprague Creek Campground in Glacier NP and cross Logan Pass the next day and stay at St. Mary Campground or one of the commercial campgrounds outside the park. The next day you could ride U.S. 89 south to MT 49. That would take you right to the station. The climb out of St. Mary is stiff, and there are some additonal shorter hills before MT 49. MT 49 through Blackfoot land is somewhat narrow and curvy on the way up to Looking Glass Hill, but it's a pretty ride with great views that's not that arduous. Just did it last year. From the summit it's virtually all down hill to East Glacier, where there is camping, a motel, a hostel and several places to eat.
Alternatively, you could ride to Glacier, ride up and back down the west side of GTS Road and head back to Whitefish the following day. If you do either, make sure you follow the route AC uses from Columbia Falls to West Glacier, which is MT 486 (a/k/a N. Fork Rd.) to Blankenship Rd. to Belton Stage Rd. From there, the AC route makes a right onto Lake 5 Rd. to get to U.S. 2, but you can stay on Belton Stage to U.S. 2. Do not take U.S. 2 all the way from Columbia Falls as there is a section approaching Hungry Horse (I just love saying that name) that is narrow and has lots of traffic and no shoulder. The alternate is partially unpaved, but it's doable unless you are riding skinny road tires. Keep an eye out for bears along Belton Stage as you get closer to U.S. 2. We saw one in the distance last year.
Finally, I would call ahead to the station to make sure Amtrak has a box for your bike. If they don't check out Glacier Cyclery in Whitefish. Very knowledgeable and helpful group there.