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Amid modern life, as many traditional values face the risk of fading away, Nung Indigo, located in Khao Hamlet, Quang Uyen Commune, Cao Bang Province, has become a destination that helps preserve and promote the distinctive indigo hues of the Nung An ethnic group, offering visitors an engaging cultural experience on their journey to explore Cao Bang’s scenic landscapes. Photo: Chu Hieu - VNA