SP&S Hoyt Street Roundhouse with Alco FA-1 Number 852 A-1 on a roundhouse track, undated.

A view of demolition by Burlington Northern of former SP&S Hoyt Street Roundhouse in Portland, Oregon, undated.

A Burlington Northern-era photo of the former Great Northern interlocking tower outside the south portal of the downtown Seattle tunnel, just north of King Street Station, Seattle, Washington. The tower's telegraph code is "UD". Photo by Walt Grecula.

A view looking east at the Burlington Northern enginehouse and sand tower at Wishram, Washington, November 14, 1971, from the W. Richard Parks, Sr. Collection.

Burlington Northern eastbound coal train X200 with Wisconsin Power and Light hopper cars and caboose on the trestle over the Sheyenne River in Valley City, North Dakota on March 14, 1981. Photo by Al Christianson

Burlington Northern eastbound 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.

New Burlington Northern centralized traffic control (CTC) and dispatchers office at Vancouver, Washington, undated. Photo by Burlington Northern, Inc.

Centralized Traffic Control (CTC) panel, "Double Track South," in Burlington Northern dispatchers office, Union Station, Tacoma, Washington, on December 2, 1970. Photo by J.M. Fredrickson. Other Subject Classes: CTC equipment, dispatchers office,

Centralized Traffic Control (CTC) panel, "Double Track South," in Burlington Northern dispatchers office, Union Station, Tacoma, Washington, on December 2, 1970. Photo by J.M. Fredrickson. Other Subject Classes: signal equipment, dispatchers office,

Burlington Northern dispatch office at Vancouver, Washington, on June 7, 1970. New brick dispatch office. Photo by J.M. Fredrickson. Other Subject Classes: dispatch office