In order to have thorough dominance of the aboriginals during the Japanese Occupation Era, Japanese built a connecting roadway, approximately 120 centimeters in width, between aboriginal Tribes and other Tribes. Telephone lines were set up along the pathway for emergency contact. Japanese adopted strict measure to supervise the construction by military personnel. Working on the trees, bushes and earth, the aborigines had to chisel piece by piece when run into steep cliffs and mountain walls. They built wire suspension bridges, some with height of 100 meters from the rivers. It was quite a challenge for someone afraid of height. This proves that aboriginal life under Japanese Governance is full of hardship. 　　　　　　　　　　 　

　Approximately 16 kilometers in length, the old trail which maintains the original features starts from the Five-Year Fiesta ceremonial site by way of Purple Butterfly Valley ( 紫蝶谷 ) to the DanLin Community XiLeFaFa ( 喜樂發發 ) Park. The old trails wander among dense woodlands, growing weeds and shrubs along the way occupying the road, which of very little use nowadays. It can only be passed through by cutting the weeds and going around the dead wood, which takes extra physical strength. There are various trees of unique shapes and birds and animals jumping up and down in the bushes; among them the mahogany is especially precious.

Source：Kuljaljau Community Ecological Field Study 　Image：Mei-jun Chen 　 Edited by：Si-chih Tung, Huang Jun