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 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 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 6633 at Minneapolis, Minnesota, on June 19, 1973. Number 6633 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 37173. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse.

Burlington Northern diesel locomotive 6533 at Minneapolis, Minnesota, on August 24, 1972. Number 6533 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 37141. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6508 at Minneapolis, Minnesota, on August 24, 1972. Number 6508 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 37116. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6507 at Minneapolis, Minnesota, on June 21, 1973. Number 6507 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 37115. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6500 at Minneapolis, Minnesota, on June 19, 1973. Number 6500 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 37108. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6472 at Minneapolis, Minnesota, on June 19, 1973. Number 6472 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 36361. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.