Burlington Northern Class SDP40 Number 6394, (former Great Northern Number 320); SD45 Number 6483, built August 1970; SD40-2 Number 8130, built June 1980; at grade crossing in Breakenridge, Minnesota with a freight on March 11, 1981. 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 SD45 Number 6491, built August 1970; SD40-2 Number 6366, built November 1976; passing Newport interlocking at Newport, Minnesota on April 6, 1981. Photo by Al Christianson.

Burlington Northern Class SD45 Number 6547, built November 1971; SD45 Number 6557, built December 1971; SD40-2 Number 8147, built July 1980, and an SD40-2, number unknown; with a piggyback freight at Dilworth, Minnesota on March 14, 1981. Photo by Al Christianson.

Burlington Northern Class SD45 Number 6560, built December 1971; SD45 Number 6403, (former Northern Pacific Number 3603); an SD45, number unknown; and an SD40-2, number unknown; passing Hoffman Avenue interlocking at Dayton's Bluff, Minnesota with an eastbound freight on April 24, 1981. 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 F45 Number 6626, built April 1971; SD40 Number 6324, built November 1971; F45 Number 6625, built September 1970; SD45 Number 6571, built October 1971; at Minneapolis, Minnesota on August 10, 1981. Photo by Al Christianson.

Burlington Northern Class F45 Number 6630, built April 1971; SD40-2 Number 6833, built November 1973; SD40-2 Number 67*5; and an SD45, number unknown; at Northtown yard in Minneapolis, Minnesota on July 26, 1980. Photo by Al Christianson.