It is located in the Lào Cai Province of the Northwest region of Vietnam, 9 km southwest of Sa Pa Township in the Hoang Lien Son mountain range.
Fansipan is the tallest mountain in the Hoang Lien Son Range, situated on the border of Lao Cai Province and Lai Chau Province with its peak located on Lao Cai side. The mountain is part of the Hoàng Liên National Park. It has a topographic prominence of 1,613 metres (5,292 ft), ranking 6th in Vietnam.
Fansipan can be climbed in a steep and fairly strenuous hike. Previously, it would take about 5-6 days from Sapa to reach Fansipan peak and return. Now the total time is usually only about 3 days, even 2 days, or for experts and strong, healthy people, it can be done in one day.
A cable car to the peak of Fansipan was inaugurated on February 2, 2016. It departs from a terminal in Muong Hoa Valley near Sa Pa and takes 20 minutes to arrive at the summit. The service holds two Guinness World Records for the longest non-stop three-rope cable car in the world, spanning 6.3 km (3.9 mi), and the greatest elevation difference by a non-stop three-roped cable car for the 1,410 m (4,630 ft) difference in elevation between the termini.
According to VietKings (Kyluc.vn)