The loaded ore train M4 of about 2 kilometer length from Zouérate/Fder?ck to Nouadhibou is only a few minutes from destination. Pulling are SDL40-2 CC # 109, # 103 and # 117 (built between 1981 and 1997) of the SNIM in multiple control. The locomotives SDL40-2 # 101 to # 110, built in 1981/1988 are in green color like they were delivered. Several people ride on top of the loaded ore cars, which means a 15 to 18 hours long, very dusty, cold and uncomfortable journey at night. In the rear of the train were two staff cars and a old passenger car.
