Siyuan Intersection Introduction
Siyuan Pass is located at the junction of Taichung City and Yilan County, within the boundaries of Datong Township, Yilan County. It stands at an elevation of 1,948 meters and serves as the lowest saddle between the Nanhu Mountain range and the Taoshan range. It is also the watershed dividing the Lanyang River and the Dajia River, as well as the boundary between two distinct climates. Previously known as Biyanan, which means "a place where ancestors once came" in the Atayal language, it was phonetically referred to as "Biyanan" by the Japanese. Later, the government changed the name to "Siyuan," meaning to remember the source of one's drinking water. The term "Pass" refers to the depressed area where two mountains connect. This area is primarily characterized by warm-temperate forests, with species like Hinoki cypress and Taiwan cedar in the upper regions, while other areas feature fragrant camphor, black heart wood, red alder, and Taiwan fir, along with a rich diversity of wildlife and insects in its natural ecosystem. Siyuan Pass connects the Xueshan Mountain Range with the Central Mountain Range, resulting in distinct seasons and beautiful scenery. In spring and summer, wildflowers bloom abundantly, while in autumn and winter, leaves change color and fall. If moisture levels are sufficient, there is also a chance of snowfall, creating a picturesque scene reminiscent of northern countries.
