The Nenggao Traversing Historic Trail in Renai Township, Nantou County used to be a road for the Sediq people to hunt and travel.
In the Taroko War in 1914, this road was also used by the Government-General in Taiwan to send troops to attack the Turuku people. Afterwards, for the sake of long-term stability, the Chuying to Qilai crossroad was excavated along the existing old Nenggao Trail. However, due to the high elevation of the east section of the trail and that it was difficult to pass during winter, the whole trail was rebuilt in the middle of the Japanese Occupation period.
In the early post-war period, the Nationalist Government erected iron towers along the Nenggao Traversing Historic Trail as a protection route for power transmission from east to west. Nowadays, hiking from the Tunyuan entrance of the Nenggao Traversing Historic Trail has become a popular hiking route.
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