Burlington Northern 7132 leading train in Minneapolis, Minnesota on March 22, 1981. Number 7132 is an SD40-2 built by Electro-Motive Division (EMD), builder's number 786173-7. Photo by Al Christianson.

Burlington Northern diesel locomotive 730, formerly Northern Pacific 6013D, at Minneapolis, Minnesota in August 1972. Number 730 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 14253. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, structure.

Burlington Northern diesel locomotive 730, formerly Northern Pacific 6013D, at Minneapolis, Minnesota, on August 24, 1972. Number 730 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 14253. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, structure.

Burlington Northern diesel locomotive 733, formerly Northern Pacific 6014B, at Minneapolis Jct., Minnesota, on June 19, 1973. Number 733 is an F7B built by General Motors Electro Motive Division (EMD), builder's number 14266. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 741, formerly Northern Pacific 6016B, at Minneapolis, Minnesota, on June 21, 1973. Number 741 is an F7B built by General Motors Electro Motive Division (EMD), builder's number 14270. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 760, formerly Northern Pacific 6006A/6051A, at Minneapolis, Minnesota, on June 21, 1973. Number 760 is an F5A built by General Motors Electro Motive Division (EMD), builder's number 6658. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern Diesel Locomotives 782 and 1550 at Minneapolis, Minnesota on August 1st, 1980. Number 782 is an F9A built by General Motors Electro Motive Division (EMD), formerly Northern Pacific number 7013D. Number 1550 is a GP7 built by General Motors Electro Motive Division (EMD), formerly Great Northern number 650. Photo by A.L. Christianson

Burlington Northern Diesel Locomotive 784 at Minneapolis, Minnesota on October 30, 1980. Number 784 is an F9A built by General Motors Electro Motive Division (EMD), formerly Northern Pacific number 7011D. Photo by A.L. Christianson

Burlington Northern 7842 leading coal train in Minneapolis, Minnesota on February 8, 1981. Number 7842 is an SD40-2 built by Electro-Motive Division (EMD), builder's number 776057-23. Photo by Al Christianson.

Burlington Northern 7856 in Northtown Yard at Minneapolis, Minnesota on February 24, 1981. Number 7856 is an SD40-2 built by Electro-Motive Division (EMD), builder's number 786001-1. Photo by Al Christianson.