In 1986 he completed the first survey since Taiwan's return from Japanese to Chinese rule of the entire western section of the old Hehuan Trail, which was built under the Japanese occupation, following the course of hunters 'tracks.
民國七十五年，他完成光復後首次對日據時代開拓獵路而成的「合歡越嶺古道東段」的全程探勘。