Butte, Anaconda and Pacific Railroad flat car and other cars and electric locomotives at Butte, Montana in 1964. Photograph by Alden Raney. Other subject classes: Car-Flat.

Butte, Anaconda and Pacific Railroad wood box car 94 at Butte, Montana in 1964. Photograph by Alden Raney. Other subject classes: Car-Box Wood.

Burlington Northern westbound intermodal train Number 23 crossing the Stone Arch Bridge over the Mississippi River at Saint Anthony Falls in Minniapolis, Minnesota on October 14, 1980. Photo by AL Christianson

Burlington Northern Westbound grain train crossing the Gassman Coulee trestle in Minot, North Dakota on February 19, 1981. Photo by Al Christainson

Burlington Northern Westbound grain train crossing the Gassman Coulee trestle in Minot, North Dakota on February 19, 1981. Photo by Al Christainson

Burlington Northern westbound empty coal train with Burlington Northern hopper cars on the trestle over the Sheyenne River in Valley City, North Dakota on February 20, 1981. Photo by Al Christianson.

Burlington Northern Train Number 560 leaving westbound at Willmar, Minnesota on July 26, 1971. Photo by Howard Patrick.

Eastbound freight Number 80 crossing the Gassman Coulee bridge near Minot, North Dakota on February 19, 1981. Four Burlington Northern cabooses on the rear, following a mix of mainly 20 foot international containers on Trailer Train flatcars. Photo by Al Christianson.