Historical records for this humble temple are scarce, yet local tradition claims it predates the very founding of Chiang Rai, giving it an age of over 800 years. Its origins likely trace back to the early Lanna Kingdom, possibly during the reign of King Mengrai or shortly after. Though modest in scale, Wat Mung Muang has quietly observed the unfolding tides of northern Thailand’s history, standing as a silent guardian of the region’s political and cultural transformations.