Bridge Railway Introduction: Bridge Railway, also known as Fengsha Line Railway. The Fengsha Line starts from the Yongdian River Gorge, which is only a few dozen meters above sea level, crosses the Taihang Mountains, and enters the southern edge of the Inner Mongolia Plateau in northwest Hebei Province. There are many canyons, mountains, rivers, and tunnels along the line. The project is arduous, but the scenery is beautiful. It is a quiet scenery line.