A frozen BNSF 6974 leads a loaded ethanol train through Perry, Ohio with a CSX Tier 4 running 2nd.

Climbing eastbound, BNSF 6974 and mates lift double stacks around the curve into Summit.

A westbound BNSF grain train leans into a superelevated curve on an arcing fill along the Clark Fork between Noxon and Heron, Montana, on May 4, 2012.

Deep down in Little Gore Canyon the daily BNSF Provo-Lincoln manifest train heads east through Tunnel 40 strung out along the narrow shelf carved into the steep canyon walls.

Can't you just imagine a fish lurking in that clear water? A new BNSF ES44C4 leads a westbound grain train on a fill west of Noxon, Montana, on MRL's 4th Subdivision.