Burlington Northern F9A Number 766, F9B Number 781; F9B Number 783, F9A Number 792, all former Northern Pacific; in Fridley, Minnesota with Frisco covered hopper 81122 on March 6, 1980. Photo by K. F. Rasmussen.

Burlington Northern F9A Number 766, F9B Number 781; F9B Number 783, F9A Number 792, all former Northern Pacific; in Fridley, Minnesota with train on March 6, 1980. Photo by K. F. Rasmussen.

Burlington Northern Class SD40-2 Number 6716, built February 1976; F9B Number 777, (former Northern Pacific Number 6705B); F9A Number 774, (former Northern Pacific Number 6702A); in Saint Cloud, Minnesota with a freight on February 17, 1981. Photo by Al Christianson.

Burlington Northern Class SD40-2 Number 6710, built February 1976; SD40-2 Number 6701, built December 1974; in Cottage Grove, Minnesota with a freight on February 9, 1982. Photo by Al Christianson.

Burlington Northern Class SD40-2 Number 6709, built February 1976; SD40-2 Number 6754, built December 1976; SD40-2 Number 6752, built March 1976; passing Hoffman Avenue interlocking in Saint Paul, Minnesota with eastbound loaded ore jennies on February 10, 1982. Photo by Al Christianson.

Burlington Northern Class SD40-2 Number 6709, built February 1976; SD40-2 Number 6754, built December 1976; SD40-2 Number 6752, built March 1976; at Chemolite, Minnesota with eastbound loaded ore jennies on February 10, 1982. 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 on May 30, 1980. Photo by Al Christianson.

Burlington Northern Class SD40-2 Number 6708, built February 1976; SD40-2 Number 6754, built December 1976; and SD40-2 Number 6726, built February 1976; at Newport, Minnesota with eastbound loaded ore jennies, including Northern Pacific hopper Number 78455, Great Northern hopper Number 92*83, and Great Northern hopper Number 91867, on May 30, 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 Class SD40-2 Number 6707, built December 1974; an SD45, number unknown; and SD40-2 Number 6776, built May 1977; at Northtown diesel shop in Minneapolis, Minnesota on June 5, 1980. (former Northern Pacific sand hopper in background. Photo by Al Christianson.