NP 4-6-6-4 at Livingston, Mont.

As trackworkers tend to a frozen switch, Northern Pacific 4-6-6-4 No. 5122 prepares to head east out of Livingston, Mont., with a freight sometime in the late 1940s. NP’s Livingston shops, still used by today’s Montana Rail Link, are visible at right. C. W. Jernstrom photo