Lào Cai Province than with snowing conditions. Fog and frost are a common phenomenon in the province. Lào Cai is a mountainous region. In the northwest of the province is Phan Xi Păng (also called Fansipan; elevation , snow covered during winter season), Vietnam's highest mountain. It is located in the Hoàng Liên Sơn and the Hoàng Liên National Park. The Sa Pa Mountains form the western part of the province. While the province is drained by over 100 rivers, the main river that bisects the province is the Red River, (), the most significant river of northern Vietnam, which flows out of
Highest unclimbed mountain had only one summit attempt back in 1957 when climbers came within of the summit; Nepal then banned future attempts. The mountain most widely claimed to be the highest unclimbed mountain in the world in terms of elevation is Gangkhar Puensum (). It is in Bhutan, on or near the border with China. In Bhutan, the climbing of mountains higher than has been prohibited since 1994. The rationale for this prohibition is based on local customs that consider this and similar peaks to be the sacred homes of protective deities and spirits, and the lack of high-altitude rescue resources from