Taiwan (台灣), Yilan County (宜蘭縣), Datong Township (大同鄉), Szuyuanyakou (思源埡口), Szuyuanyakou(思源埡口), Forest Road 710 (710林道); en route from the beginning of hiking trail to Yunlingshanchuang (雲稜山莊, a lodge). Pinus taiwanensis and Chamaecyparis formosensis plantation mixed with deciduous forest dominated by Alnus formosana