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 Type U25C Number 5627, former Northern Pacific Number 2527; U25C Number 5637, former Burlington Number 557; U28C Number 5673, former Northern Pacific Number 2807; passing Hoffman Avenue interlocking in Daytons Bluff, Minnesota with two Great Northern ballast hoppers, including Number 78264, on April 15, 1980. Photo by Al Christianson.

Burlington Northern Type U25C Number 5627, former Northern Pacific Number 2527; U25C Number 5637, former Burlington Number 557; U28C Number 5673, former Northern Pacific Number 2807; passing Hoffman Avenue interlocking in Daytons Bluff, Minnesota with eastbound freight on April 15, 1980. Photo by Al Christianson.

Burlington Northern Type U33C Number 5764, former S J Groves Number 507; U33C Number 5750, built August 1971; SD40-2 Number 6910, former Number 6374, built April 1973; U33C Number 5712, former Great Northern Number 2542; passing Hoffman Avenue interlocking in Daytons Bluff, Minnesota with Corn Products (CCLX) airslide covered hopper Number 50062 on March 11, 1980. Photo by Al Christianson.

Burlington Northern Type U33C Number 5764, former S J Groves Number 507; U33C Number 5750, built August 1971; SD40-2 Number 6910, former Number 6374, built April 1973; U33C Number 5712, former Great Northern Number 2542; passing Hoffman Avenue interlocking in Daytons Bluff, Minnesota with westbound freight on March 11, 1980. Photo by Al Christianson.

Burlington Northern Type U33C Number 5764, former S J Groves Number 507; U33C Number 5750, built August 1971; passing Hoffman Avenue interlocking in Daytons Bluff, Minnesota on March 11, 1980. Photo by Al Christianson.