Around 250-300 years ago, hunters of the Atayal tribe, who previously lived along the upper reaches of the Choshui River, discovered a broad area of open country on the eastern side of the Central Range. From that time on the Atayal began to cross the mountains and settle in the Liwu Valley.
距今約二百五十至三百年間，原居於濁水溪上游的泰雅人在狩獵途中，發現中央山脈東側的廣闊原野，於是相率越過群峰，進入立霧溪河谷定居。