Small train supplies water to mountain for 44 years

Running the train all year around is no easy task, especially in winter when temperatures easily drop below minus 20 degrees Celsius. Some of the fuel is spent heating the water during the journey to prevent freezing.

"Water often drips onto our clothes and instantly freezes. We cannot bend our arms or legs and have to move like a gorilla," said Jia Lin, a veteran worker at the line's Quanyang station.