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Aerial photo taken on March 22, 2018 shows the scenery of Dongchuan Red Land in Hongtudi Township of Kunming, capital of southwest China's Yunnan Province. Located mainly at an altitude between 1,800 and 2,600 meters, the Dongchuan Red Land's brownish-red color comes from its rich deposit of iron and aluminum. (Xinhua/Hu Chao)
