- Boriwen
Boriwen ( _th. บริเวณ) were subdivisions of three of the larger Thai
monthon , they were above thechangwat (province) level.The monthon with between three to five boriwen were Phayap, Udon Thani and Isan. Each boriwen was administrated by a commissioner ("khaluang boriwen", ข้าหลวงบริเวณ). The administrative headquarters of the boriwen were located in the provincial town listed first:
*Monthon Phayap
**Boriwen Northern Chiangmai:Chiang Rai , Chiang Saen, Papao, Nongkhwang, and Fang
**Boriwen Western Chiangmai:Mae Hong Son , Yuam, Khun Yuam, and Pai
**Boriwen Northern Nan:Chiangkhong , Thoeng, Chiangkham, Chianglaeng, Chianglom, Chianghon (Khop and Kutsawadi were seceded to France in 1904)
*Monthon Udon Thani
**Boriwen Makkhaeng:Ban Makkhaeng (Udonthani), Nongkhai, Nonglahan, Kumphawapi, Kamutthasai, Phonphisai, and Rattanawapi
**Boriwen Phachi:Khonkaen , Chonnabot, and Phuwiang
**Boriwen That Phanom:Nakhon Phanom , Chaiburi, Tha Uthen and Mukdahan
**Boriwen Sakon:Sakon Nakhon
**Boriwen Nam Huang:Loei , Kaen Thao, Bo Tha
*Monthon Isan
**Boriwen Ubon:Ubon Ratchathani , Khemmarat, Yasothon
**Boriwen Champassak (Bassac): Champassak (Bassac)
**Boriwen Khukhan:Khukhan , Sisaket, and Det-udom
**Boriwen Surin: Surin, and Sangkha
**Boriwen Roi-et:Roi Et , Mahasarakham, Kalasin, Kammalasai, Suwannaphumee also
*
Subdivisions of Thailand References
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