Hidden in the forests above Shangyun 上允 are the ruins of a Buddhist temple fortress founded during the Qing Dynasty by separatist monks from Jizushan who built a significant religious following by the local Lahu and Dai people.
The temple in Mangdao 芒岛, built in 1899, is one of few surviving examples of Dai Buddhist temples having survived the Cultural Revolution by being converted into grain storage.
The Gourd Festival 葫芦节 is the main festival of the Lahu people. In Lancang, its date has been moved into April to coincide with the county's foundation.