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The Phi Pan Nam Range, also Pee Pan Nam,〔(Thai Society for the Conservation of Wild Animals - Thai Forests; Geography of Thailand )〕 ((タイ語:ทิวเขาผีปันน้ำ)) is a long system of mountain ranges in the eastern half of the Thai highlands. It is mostly located in Thailand, although a small section in the northeast is within Sainyabuli and Bokeo Provinces, Laos. In Thailand the range extends mainly across Chiang Rai, Phayao, Lampang, Phrae, Nan, Uttaradit and Sukhothai Provinces, reaching Tak Province at its southwestern end. The population density of the area is relatively low. Only two sizable towns, Phayao and Phrae, are located within the area of the mountain system and both have less than 20,000 inhabitants each. Larger towns, like Chiang Rai and Uttaradit, are located close to the limits of the Phi Pan Nam Range, in the north and in the south respectively. Phahonyothin Road, part of the AH2 Highway system, crosses the Phi Pan Nam Range area from north to south, between Tak and Chiang Rai. There are two railway tunnels of the Northern Line across the Phi Pan Nam mountains. Both are located in the southern side of the range: the 130.20 m Huai Mae Lan Tunnel in Phrae Province and the 362.44 m Khao Phlueng Tunnel in Uttaradit and Phrae provinces.〔(Khao Phlueng Tunnel )〕 In the mountains north of Thoeng, at the NE end of the range, there are Hmong people living in small villages such as Ban Saen Than Sai and Ban Phaya Phripak, the latter located on top of a mountain pass. ==Geography== The Phi Pan Nam Range is composed of many smaller mountain chains roughly aligned in a north-south direction in its northern part and, further south, in a NE - SW direction. These ranges cover an extensive area and are often separated by intermontane basins or lowlands. They limit in the west with the Khun Tan Range, in the east with the Luang Prabang Range, and with the Central Plain of Siam in the south. The northern tip is bound by the Mekong river.〔(Heritage Thailand, Geography 4 )〕 The highest point is the 1,694 m high summit known as Doi Luang.〔(Doi Luang ) (Thai)〕 It is located in the NW near Phayao town, but there are a number of less high mountains with the name 'Doi Luang' throughout the range such as 1,426 m high Doi Luang in Mae Chai District. Other important peaks are 1,608 m high Doi Pha Tang,〔( ภูชี้ฟ้า ดอยผาตั้ง (Phu chi fa & Doi pha tang) )〕 1,628 m high Doi Pha Mon (at Phu Chi Fa), 1,603 m high Doi Cha Tong, 1,507 m high Doi Nang, 1,543 m high Doi Yao, 1,442 m high Phu Chi Fa, 1,403 m high Doi Phu Kheng, 1,396 m high Doi Luang, 1,328 m high Doi Luang Pae Mueang, 1,303 m high Khun Huai Han, 1,202 m high Doi Phu Nang,〔(Doi Phu Nang picture )〕 1,178 m high Doi Lan, 1,075 m high Doi Khun Mae Loe, 1,013 m high Doi Pha Mon, 938 m high Doi San Klang and 843 m high Doi Pui. There are columnar basalt formations in Mon Hin Kong ((タイ語:ม่อนหินกอง)) in an area in the mountains near Na Phun, Wang Chin District, Phrae Province.〔(ม่อนเสาหินพิศวง Wonderful Mountan Of Colunnar )〕 In Phae Mueang Phi there are mushroom rocks and other bizarre rock formations caused by erosion.〔(แพะเมืองผี รูปและข้อมูล จ.แพร่ )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Phi Pan Nam Range」の詳細全文を読む スポンサード リンク
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