Tambon in Thailand
Muang Yai (Thai: ม่วงยาย, pronounced [mûa̯ŋ jāːj]) is a village and tambon (subdistrict) of Wiang Kaen District, in Chiang Rai Province, Thailand.[1][failed verification] In 2005, it had a population of 7,449 people. The tambon contains nine villages.
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