The Duan-ya Police Post at the Zhuilu section of the Hehuan Traversing Historic Trail is located on the west side of the Zhuilu Cliff, just where it begins to enter the forest. It was first the Donglu Branch Office. Later in 1922, it was changed to Duan-ya Police Post and was finally abolished in 1934.
Today, hikers who come here will rest on the concrete foundation platform that remained from the police post before turning back.