Winter is not the normal railfan period to visit the BNSF over Marias Pass and northern Montana. A westbound train led by a BN GE is coming through Summit in a snow squall. BN 3141 leads an eastbound on a morning run through Marias Pass. The train is east of Summit.
Weather can vary greatly in the mountains and following an eastbound out over the eastern flats.
The actual location is from a Pizza Hut parking lot. Summit may have one weather pattern while the rest of the area may have others. This westbound is meeting an eastbound near Summit before heading west down the slope towards Essex and Whitefish. Snow falling on the mountains, sun is shining brightly back towards West Glacier. The same train is exiting one of the tunnels near West Glacier, and viewed directly off the highway.