QCM's mainline was constructed in 1960. In the beginning, the railroad was hauling its ore trains with EMD's GP9. A couple of ALCO's were also on the roster. Later, more ALCO's were purchased to replace the GP9's. Cartier Railway's last ALCO powered ore train finished its run at 03:30 on October 16th, 2002.
GE AC's are now leading everything except the passenger and EP brake trains.