Burlington Northern Engineering Drawing: Plan Reference Files, Midway Auto Unloading Foundation, Saint Paul, Minnesota, prepared in 1982. Burlington Northern File Number 1625, Reference Number 10110, Sheet 002.

Burlington Northern SD40-2 Number 6902, built March 1973; SD40-2 Number 8026, built March 1978; SD40-2 Number 8041, built September 1979; GP10 Number 1406, former Great Northern Number 606; GP10 Number 1409, former Great Northern Number 609; meet at Dayton's Bluff, Minnesota with loaded ore jennies on June 18, 1981. Photo by Al Christianson.

Burlington Northern SD40-2 Number 6799, built November 1977; SD40-2 Number 6704, built December 1974; SD40-2 Number 6711, built February 1976; SD40-2, number unknown; passing Hoffman Avenue interlocking at Dayton's Bluff, Minnesota with bathtub coal gondolas on June 4, 1981. Photo by Al Christianson.

Burlington Northern SD40-2 Number 6799, built November 1977; SD40-2 Number 6704, built December 1974; SD40-2 Number 6711, built February 1976; SD40-2, number unknown; passing Hoffman Avenue interlocking at Dayton's Bluff, Minnesota with blue-ended bathtub coal gondolas on June 4, 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.

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 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 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 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 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.