Pu Si Lung Peak

Pu Si Lung Peak is a 3,083-meter mountain on the Vietnam-China border in Pa Ve Su Commune, Muong Te District, Lai Chau Province, northwestern Vietnam. It is the second-highest peak in Vietnam after Fansipan and marks the border at landmark 42. Notable for its remote primary forest, rugged trekking routes, and panoramic views, it attracts experienced trekkers seeking a challenging multi-day expedition in a border region requiring permits and local guides.

Visitors can expect a remote, strenuous multi-day trek through dense primary forest, steep ridges and rocky slopes to a summit marked by border landmark 42. The route from Pa Ve Su Commune has no built tourist infrastructure and requires a local guide and porter. At the summit, visitors see panoramic views of forested mountains on both sides of the border, cloud formations and sunrise views in clear weather, and a border marker area for photography.

Pu Si Lung is a prominent border peak marking the Vietnam-China boundary at landmark 42 and has long served as a geographic reference point in the northwestern border region.

The surrounding area is home to ethnic minority communities including Ha Nhi and La Hu people, whose villages and traditional livelihoods are found in Pa Ve Su and Muong Te.