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 5750, built August 1971; SD40-2 Number 6822, former Number 6362, built November 1973; and an unidentified St. Louis-San Francisco Railway (Frisco) diesel engine at Mississippi Street in St Paul, Minnesota on August 5, 1979. Photo by Tom Carlson.

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.

Burlington Northern Type U30C Number 5812, built September 1973; C30-7 Number 5598, built June 1979; and a U30C (number unknown); with westbound empty utility bathtub coal gondolas east of Alliance, Nebraska on August 23, 1981. Photo by Al Christianson.

Burlington Northern Type U30C Number 5812, built September 1973; C30-7 Number 5598, built June 1979; and a U30C (number unknown); with westbound empty utility bathtub coal gondolas about six miles west of Mullen, Nebraska on August 23, 1981. Photo by Al Christianson.

Burlington Northern Type U30C Number 5812, built September 1973; C30-7 Number 5598, built June 1979; and a U30C (number unknown); with westbound empty utility bathtub coal gondolas west of Mullen, Nebraska on August 23, 1981. Photo by Al Christianson.

Burlington Northern Type U30C Number 5812, built September 1973; C30-7 Number 5598, built June 1979; and a U30C (number unknown); passing Alliance division 1st Subdivision milepost 269.5 with westbound empty utility bathtub coal gondolas at Mullen, Nebraska on August 23, 1981. Photo by Al Christianson.