First light on an eastbound stack train at Bison, Montana.

BNSF 4664 is the lead power with 10 more engines in tow.

BNSF 4664 south (GE C44-9W) with a stack train.

A Trio of General Electric Dash-9 locomotives leads a westbound BNSF grain train across Fish Creek Trestle on Montana Rail Link's 4th Subdivision on April 23, 2011.

Too bad this isn't a real 4-6-6-4, but BNSF 4664 hits a bank of freshly plowed snow at 60mph.