For example, the Chenyoulan River that originates in Yushan's northern foothills formed along a geological fault line. Its course runs down a steep incline, paralleling the Japanese-built branch of the Patungkuan Trail from Tungpu to Tuikuan. Along the trail, one can see landscape features such as the V-shaped river valley and waterfalls, cliffs, and areas of geological collapse.
例如發源於玉山北麓的陳有蘭溪因為沿斷層發育，坡度陡峭，從東埔到對關的日據古道上，沿路都可看到 V 狀河谷及瀑布、斷崖、崩塌地等地形。