Mixture train that runs Zhaodian - Sishuizhuang period

In October, 1990 Zhaodian - Sishuizhuang

My image of narrow gauge railway is light equipment. Here differed. Track bed is being firm thickly and use a heavyweight rail. And there are no grasses on track bed. Many labor force are necessary to maintain the railway track. Yunnan is the producing district of marble. Therefore even the stone of the railway track was pure white.