Heading on to the Luofu Bridge, we reach Stop # 4: This is where the Shihmen Reservoir area proper begins. Even ten days after the typhoon, the river's surface is still iron-grey, and you can see how much silt and soil is in the water, showing that the river is seriously lacking the ability to cleanse itself.
出了霞雲溪到羅浮橋，俯瞰河面──這也是石門水庫庫區的開端，颱風 10 天後河面仍然一片鐵灰，可見泥沙量之多，水流缺乏自淨力的程度相當嚴重。