Chai Wenzhong, operator of the Linhe-Ceke train, reports information to a dispatcher on March 6. [Photo/Xinhua]

Train No 57021 shuttles from Linhe in Bayannur to Ceke in Ejin Banner transporting daily necessities to over 30 railway stops.

Over a 70 hour round-trip, the train passes through sparsely-populated areas, nearly 80 percent of which are desert, to deliver drinking water, vegetables, and daily commidities.

The train even passes through some zones with no name, and are instead positioned by train mileage. Despite no trace on a railway map, it’s an indispensible weekly journey.