Burlington Northern Class SD24 Number 6252, (former Burlington Number 512); a leased Precision SD18m Number 1809; and a leased Precision SD18m Number 184* at Dayton's Bluff, Minnesota with Conrail covered gondola in 1979. Photo by Al Christianson.

Burlington Northern Class SD40 Number 6342, (former Colorado and Southern Number 882); a U33C, number unknown, (former Chicago, Burlington and Quincy, number unknown); and an SD40-2, number unknown; passing Coon Creek train order office at Minneapolis, Minnesota with a westbound freight on February 7, 1981. Photo by Al Christianson.

Burlington Northern Class SD45 Number 6537, built August 1971; SD45 Number 657*, (former Colorado and Southern), built October 1971; and an unknown engine; with a freight at an unidentified location on September 19, 1980. Photo by Al Christianson.

Burlington Northern Class F45 Number 6617, built August 1970; SD40-2 Number 7889, built May 1979; at Minneapolis, Minnesota on November 15, 1980. Photo by Al Christianson.

Burlington Northern Class F45 Number 6617, built August 1970; SD40-2 Number 7889, built May 1979; at Minneapolis, Minnesota on November 15, 1980. Photo by Al Christianson.

Burlington Northern Class F45 Number 6621, built August 1970; SD40-2 Number 6808, built March 1973; an SD45, number unknown; and an SD45, number unknown; passing Hoffman Avenue interlocking at Saint Paul, Minnesota with a westbound freight on February 17 1980. Photo by Al Christianson.

Burlington Northern Class SD40-2 Number 6708, built February 1976; SD40-2 Number 6754, built December 1976; SD40-2 Number 6726, built February 1976; at Newport, Minnesota with eastbound loaded ore jennies, including including Northern Pacific hopper Number 78455 and Great Northern hopper Number 92*83, on May 30, 1980. Photo by Al Christianson.

Burlington Northern Type SD40-2's Number 8028, Number 8094, Number 6377 and an unidentified EMD unit with autoracks pass the interlocking tower at Newport, Minnesota on March 2, 1981. Number 8028 was built by EMD March, 1978 as Builder Number 776055-39. It became BNSF Number 8028/Number 1678. Number 8094 was built by EMD in May, 1980 as Builder Number 786256-5. It was retired by the Burlington Northern and became FURX Number 8094. Number 6377 was built by EMD April, 1974 as Builder Number 74600-2. It was retired by the Burlington Northern in October, 1987. It became MRL Number 250. Photo by Al Christianson.

Great Northern Order Board at Cashmere, Washington, April 4, 1987, order board. Other subject classes: Structure, Signals

Great Northern Order Board at Cashmere, Washington, April 4, 1987, order board, museum display. Other subject classes: Structure, Signals