![Dirty orange diesel locomotives](https://www.trains.com/wp-content/uploads/2015/11/CTR-J0921_23.jpg)
Chihuahua al Pacífico
Ferrocarril Chihuahua al Pacífico chop-nosed 515 and unadulterated sister 509 work a freight at La Junta, Chihuahua, in March 1975. The government-owned railroad began service in 1961 and became part of Ferromex in 1998. Keith E. Ardinger photo