Qiang, the steam locomotive trains in Jiayang, enjoys the reputation of "the only normal passenger steam narrow-gauge trains in the world" and is still shuttling through the mountains of Jiayang mining area, known as the "living fossil of the first industrial revolution in the world". Recently, I saw a TV documentary about the departure and retention of Jiayang small train. In spring, it is the best season to take a small train to see the mountain rape flower field. The picture of the small train spraying mist through the rape flower field is the most classic picture of Jiayang small train. Sitting in the car, the view outside the window is very beautiful. Large areas of rape flower fields are decorated with pear flowers, apricot flowers, peach blossoms, wooded hills, ponds and farmhouses. We feel that the rapeseed flowers here are very fat, spikes are longer than usual, and the proportion of the whole plant seems to be really larger. As long as the windows are opened, the choking soot smell of steam locomotives will penetrate into the nose, especially through tunnels. At Bee Rock, visitors get off to watch the train show through the rapeseed bushes. Smoked and whistling trains rush from the rapeseed blossoms on the slopes, which is the most representative landscape. Another performance point is Liangshuituo, which is said to be the only scenic spot on the small train line that can photograph the combination of small trains and mountains and rivers. The most beautiful season is when the tungzi blossoms. The rainbow created by the small train performance steam jet is the biggest bright spot. The performance of the train is hard enough, the whistle is loud, and the smoke is very powerful. But when we meet rainy and cloudy days, the rainbow can't be built anyway.