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
Phu Kao–Phu Phan Kham National Park Phu Kao–Phu Phan Kham National Park Phu Kao–Phu Phan Kham National Park () is a national park in Thailand's Khon Kaen and Nong Bua Lamphu provinces. This mountainous park, in two separate sections, encompasses part of the Ubol Ratana Dam reservoir and also features rock formations and waterfalls. The park is named for the Phu Kao and Phu Phan Kham mountain ranges of the Khorat Plateau. Phu Kao–Phu Phan Kham National Park is located about northwest of the city of Khon Kaen in the Ubolratana and Phu Wiang districts of Khon Kaen Province and the Non Sang district of Nong