The train from Nouadhibou to Zouerat in Mauritania is the longest train in the world, stretching up to three kilometres long and carrying thousands of tons of crushed rock in up to 200 wagons. Powered by 3 or 4 diesel-electric locomotives, the train transports iron ore from the mines to the port at slow speeds of under 40km/h due to its massive size and weight, with schedules dependent on extraction rates. While not intended for passengers, local Mauritanians and Sahrawis often ride the commercial train.

2. THE LARGEST TRAIN
The train from Nouadhibou to Zouerat is the longest train in the world. The train carry thousands
of tons of crushed rock in a chain of wagons up to three kilometres long. Their schedules(horarios)
and frequencies depend partly on the speed of the extraction at the mines.
There are 3 or 4 diesel-electric motors locomotives at the head of the train and about 200
wagons,each carrying up to 84 tons of iron and a variable number of service cars.
This is not a train to transport people, but lot of mauritan and saharaui people use it as it was an
comercial train.
The train can´t go over 40km/h but either it needs some minutes to stop complectly