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In the public park on the bank of Kwan Phayao, Amphoe Mueang, Phayao
This touching memorial of then-Phayao state (known as Phu Kamyao) celebrates the remarkable growth and prosperity of the kingdom of monarch Pho Khun Ngam Mueang some 700 years ago. During his reign, the city-state flourished and saw its territory expand. It was often said that wherever the King travelled, the weather obeyed his desires.
The king was also a close ally of Phokhun Mengrai, ruler of Chiang Mai Kingdom, and Phokhun Ramkhamhaeng of Sukhothai Kingdom, swearing a historic oath of non-aggression at the Ing river, near the current Phayao Freshwater Fishery Station.
The monument is open 24 hours a day. It is located inside the public park on the banks of Kwan Phayao