Burlington Northern 7893 leading train at Saint Paul, MInnesota on October 12, 1980. Number 7893 is a SD40-2 built by Electro-Motive Division (EMD), builder's number 786173-66. Owned by the Colorado & Southern. Photo by Al Christianson.

Burlington Northern 7893 leading train at Saint Paul, MInnesota on October 12, 1980. Number 7893 is a SD40-2 built by Electro-Motive Division (EMD), builder's number 786173-66. Owned by the Colorado & Southern. Photo by Al Christianson.

Burlington Northern 7066 leading coal train on Stone Arch Bridge in Minneapolis, Minnesota on December 26, 1979. Number 7066 is an SD40-2 built by Electro-Motive Division (EMD), builder's number 776057-4. Photo by Al Christianson.

Burlington Northern 7066 leading coal train on Stone Arch Bridge in Minneapolis, Minnesota on December 26, 1979. Number 7066 is an SD40-2 built by Electro-Motive Division (EMD), builder's number 776057-4. Photo by Al Christianson.

Burlington Northern 6505 leading a westbound train on Gassman Coulee trestle just west of Minot, North Dakota on February 19, 1981. Number 6505 is an SD45 built by Electro-Motive Division (EMD), builder's number 37113. Photo by Al Christianson.

Burlington Northern diesel locomotive Number 3040, EMD GP40-2 (former Frisco 750), with a westbound freight train on the Burr Canyon trestle, June 27, 1987. Photo by Robert Johnston.

Burlington Northern diesel locomotive Number 2076, EMD GP38, with freight train east of Vancouver, Washington, March 1970. Photo by Burlington Northern, Inc.

Burlington Northern diesel locomotive 2010 leading Train 191 in Granite Falls, Minnesota on December 29, 1971. Number 2010 is a GP20 built by Electro-Motive Division (EMD), builder's number 25571. Photo by Howard Patrick.

Burlington Northern Columbia River Slough Bridge.at Vancouver, Washington, on July 23, 1982. This former Northern Pacific structure is in their 3rd subdivision of the Tacoma division. Photo by GJ Werkema. Subject Classes: bridge, Columbia River

Burlington Northern Columbia river bridge.at Vancouver, Washington, on July 23, 1982. This former Northern Pacific structure is in their 3rd subdivision of the Tacoma division. Photo by GJ Werkema. Subject Classes: bridge, Columbia River