Ferrosur has an all-GE locomotive roster. After privatization, they opted to sell and trade all of their EMD and Alco engines in favor of a core of C30-7's and Super 7's. They have since invested heavily in large fleet of AC44CW's.
This C30-7 was once the shop switcher at the Valle de Mexico locomotive shops in Mexico City - hence the different pain scheme. It has since been repainted in Ferrosur's green livery.
A southbound has just finished picking up empty autoracks at Irolo, and is on the move again. At Irolo, there is a spur that leads to several manufacturing plants, including a Nissan facility and Bombardier's locomotive assembly plant where EMD locomotives are assembled.
A leased Ferromex AC44CW leads this southbound though Munoz.
Apizaco is the junction point with Linea SA, the line to Puebla. This southbound train is setting out a locomotive in Apizaco yard before departing for Puebla. The north leg of the SA wye passes on the opposite side of the depot in the background.
Continuing south on Linea S, the tracks climb a stiff grade along the base of La Malinche. The summit of this grade is the high-point between Mexico and Veracruz. In this arid altliplano, the line winds though pine trees and alpine-like streams.