The Pasnanavan Historic Trail, which crosses the Liugui District of Kaohsiung City and Yanping Township in Taitung County, was built in 1924. It starts from Liugui in the west and reaches Taoyuan in the east. The total length of the trail is about 126 km. In the past, the entry to the Trail was mostly from the west. Although the Governor-General in Taiwan found the passage long and difficult to get in and out, this trail was built nevertheless.
The Siusui (Qingshui) Police Post was built by the Governor-General in Taiwan to improve the efficiency of monitoring Bunun people in the Pasnanavan area in 1924. The number of police officers stationed increased as police posts at Onzen, Siusui (Qingshui), Songshan, Kaili, Kakaiyu, Tavilin were successively set up on the left bank of the Beisilan River.
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