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Possibly Not Complete List:
Cardamom Mountains
Dangrek Mountains (Accents Not Included)
Dong Phaya Yen Mountains
Phetchabun Mountains
Phu Phan Mountains
Sankambeng Range
Shan Hills
Thai Highlands
Si Dong Yen's population is 15,842.
Phaya Maen's population is 6,350.
Nang Phaya's population is 2,593.