Tri-Mountain National Scenic Area Headquarters

Located at the Taichung City and Yilan County border, the Siyuan Pass has an elevation of 1948 meters. It is the only intersection of the Central Mountain Range and the Xue Mountain Range and the watershed between the Dajia River and the Lanyang River systems.
The climate here is varied, the scenery is charming, and there is often snowfall in winter, making it a popular place to enjoy the snow scenery of high mountains. The misty forest scenery and four distinct seasons, combined with the background history of Atayal migration and cultural exchange, make Siyuan Pass a must-visit destination that combines nature and culture.

Cloud sea, snow scenery, and forest bathing are special forest and climate landscapes.
The Siyuan Pass has a spectacular saddle-shaped terrain. The north side is constantly wet and cold due to the influence of the northeast monsoon, while the south side is dry and sunny, forming a contrasting ecological environment. Binoki and Hinoki are in high places, while Incense Machilus and Formosan Michelia are in low places. The special natural landscape makes people feel like they have entered a living forest classroom.

Driving along Provincial Highway 7A, you can overlook the Lanyang Valley in good weather. In spring afternoons, you can enjoy the dreamlike scenery of the sea of clouds, while in winter, you can appreciate the cloud scenery of Mount Nanhu. The probability of snowfall in Siyuan Pass is also high, and there is even a chance to see the silver-white snow scenery. All seasons are an excellent place to explore the high mountains' ecology and experience nature's beauty.

Drinking water to remember its source, where the footprints of the Atayal tribe are right under your feet.
The Siyuan Pass, formerly known as the "Piyanan anbu," is at the intersection of Mount Nanhu of the Central Mountain Range and Xueshan Mountain. It was once an important passage for the Atayal people to cross mountains and migrate to the Lanyang Plain. It is also the origin of the Dajia River, symbolizing "drinking water to remember its source" and reminding people not to forget its origin.

Stepping on this path is like following the footsteps of one's people, experiencing the cultural stories and historical atmosphere hidden in the magnificent mountains and forests. Whether you love nature, enjoy capturing the scenery of a sea of clouds and snow, or are looking for a peaceful mountain journey, Siyuan Pass is a secret and beautiful place worth visiting in person.