Nov. 13, 2023 -- Salt production goes back more than 1,300 years to the Tang Dynasty (618-907) in Naxi township, Mangkam county, Qamdo city, southwest China's Xizang Autonomous Region.
Salt pans were built on hills on the banks of the Lancang River in the township. Local people follow a traditional salt harvesting method by collecting brines from salt mines and ponds, and evaporate them in the sun until they crystallize.