Burlington Northern GP40 Number 3028, former Burlington Number 628; GP40 Number 3002, former Burlington Number 172; SD7 Number 6051, former Burlington Number 403; passing Hoffman Avenue interlocking in Daytons Bluff, Minnesota with eastbound freight on December 1, 1980. Photo by Al Christianson.

Burlington Northern Class SD45 Number 6408, (former Northern Pacific Number 3608); SD40-2 Number 6763, built November 1976; an SD40-2, number unknown; and an SD40-2, number unknown; passing Hoffman Avenue interlocking at Dayton's Bluff, Minnesota with an eastbound freight on December 4, 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 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 SD40-2 Number 8074, built AuguSaint 1979; SD40-2 Number 8135, built June 1980; SD40-2 number unknown; SD40-2 number unknown; passing Hoffman Avenue interlocking at Saint Paul, Minnesota with an westbound freight on June 24, 1980. Burlington Northern passenger car behind power. 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.

Burlington Northern SD40-2 Number 6747, built March 1976; SD40-2 Number 7900, built June 1979 as Colorado & Southern Number 7900, SD40-2 number unknown; at Saint Paul, Minnesota in the snow on January 31, 1980. Photo by Al Christianson.

Burlington Northern SD40-2 Number 6759, built November 1976; SD40-2 Number 6770, built December 1976; three SD40-2 numbers unknown; at Dayton's Bluff, Minnesota with Burlington Northern coal hoppers on October 12, 1980. Photo by Al Christianson.

Burlington Northern SD40-2 Number 6771, built December 1976; SD40-2 Number 6703, built December 1974; two SD40-2, numbers unknown; at Saint Paul, Minnesota with bathtub coal gondolas on April 7, 1981. Photo by Al Christianson.

Burlington Northern SD40-2 Number 6792, built November 1977; SD40-2 Number 6726, built February 1976; SD40-2 Number 6717, built February 1976; two SD40-2, numbers unknown; at Saint Paul, Minnesota with Burlington Northern coal hoppers on April 6, 1981. Photo by Al Christianson.