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

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

Burlington Northern SD40-2 Number 6799, built November 1977; SD40-2 Number 6704, built December 1974; SD40-2 Number 6711, built February 1976; SD40-2, number unknown; passing Hoffman Avenue interlocking at Dayton's Bluff, Minnesota with blue-ended bathtub coal gondolas on June 4, 1981. Photo by Al Christianson.

Burlington Northern SD40-2 Number 6799, built November 1977; SD40-2 Number 6704, built December 1974; SD40-2 Number 6711, built February 1976; SD40-2, number unknown; passing Hoffman Avenue interlocking at Dayton's Bluff, Minnesota with bathtub coal gondolas on June 4, 1981. Photo by Al Christianson.

Burlington Northern SD40-2 Number 6770, built December 1976; SD40-2 Number 7887, built April 1979 as Colorado & Southern Number 7887; two SD40-2 numbers unknown; at Saint Cloud, Minnesota with Burlington Northern coal hoppers on February 17, 1981. Photo by Al Christianson.

Burlington Northern SD40-2 Number 6742, built March 1976; GP40-2 Number 3045, former Frisco Number 755; at Saint Paul, Minnesota on November 17, 1980. Photo by Al Christianson.