The Phi Pan Nam Range, also Pee Pan Nam, is a 400 km (249 mi) long system of mountain ranges in the eastern half of the Thai highlands. The range lies mostly in Thailand, although a small section in the northeast is within Sainyabuli and Bokeo provinces of Laos.
The Phi Pan Nam Range and the Yom River in Long District, Phrae Province
NASA picture of the Phi Pan Nam Mountains in Mueang Phrae District showing the deforestation of lowland areas
Hmong girls playing a ball game at Ban Phaya Phipak, Thoeng District, Chiang Rai Province
Melastoma malabathricum, Thai: โคลงเคลงขี้นก Khlong Khe Long Khi Nok, a flower seasonally carpeting wide areas of grassland on the higher slopes of the range.
The Thai highlands or Hills of northern Thailand is a mountainous natural region in the north of Thailand. Its mountain ranges are part of the system of hills extending through Laos, Burma, and China and linking to the Himalayas, of which they may be considered foothills.
Rice being harvested in Wang Nuea District, Lampang province. The mountains in the background are part of the Phi Pan Nam Range.
Doi Phu Kha area, Nan Province at the eastern end close to the Lao border
Wat Phra That Doi Wao [th] and the Daen Lao Range
Hills, Mae Hong Son Province at the west end of the highlands