Burlington Northern interlocking tower at Tacoma, Washington, in July 1973. Interior of Reservation tower with switch levers, signal equipment. Photo by Tim J. Fredrickson, J.M. Fredrickson collection. Other Subject Classes: interlocking tower, signal equipment

Burlington Northern interlocking tower at Tacoma, Washington, in July 1973. Interior of Reservation tower with operator T. J. Fredrickson, switch levers, signal equipment. Photo by Tim J. Fredrickson, J.M. Fredrickson collection. Other Subject Classes: interlocking tower, railroad employee, signal equipment

Burlington Northern interlocking tower at Tacoma, Washington, in July 1973. Interior of Reservation tower with operator T. J. Fredrickson, switch levers, signal equipment. Photo by Tim J. Fredrickson, J.M. Fredrickson collection. Other Subject Classes: interlocking tower, railroad employee, signal equipment

Burlington Northern interlocking tower at Tacoma, Washington, in July 1973. Interior of Reservation tower with switch levers, signal equipment. Photo by Tim J. Fredrickson, J.M. Fredrickson collection. Other Subject Classes: interlocking tower, signal equipment

Burlington Northern loading ramp at Longview, Washington, in 1981. Trailer-on-Flatcar (TOFC) facility, side track. Photo by J.M. Fredrickson. Other Subject Classes: loading facility, track

Burlington Northern "No Clearance" sign at Eltopia, Washington, on June 25, 1986. This former Northern Pacific sign is in the 2nd subdivision of the Idaho division. Photo by GJ Werkema. Other subject classes: sign

Burlington Northern computer center at Saint Paul, Minnesota, on June 20, 1973. Photo by J.M. Fredrickson. Other Subject Classes: computer center.

Burlington Northern computer center at Saint Paul, Minnesota, on June 20, 1973. Photo by J.M. Fredrickson. Other Subject Classes: computer center.

Burlington Northern Pacific station at Cle Elum, Washington, in August 1970. Station building from southwest, train order signal, mainline and siding. Photo by J.M. Fredrickson. Other Subject Classes: station, signal, track

Burlington Northern quarry at Plumb, Washington, in December 1974. Large quarry area with loaded hopper cars. Photo by J.M. Fredrickson. Other Subject Classes: quarry, freight car