Aerial photo taken on April 26, 2019 shows the scenery of Baiku Co (Baiku Lake) near Mount Shishapangma, southwest China's Tibet Autonomous Region. Baiku Co, with an elevation of 4,590 meters, is located on the border of Nyalam County and Jilong County. (Xinhua/Jigme Dorje)

Aerial photo taken on April 26, 2019 shows the scenery of Baiku Co (Baiku Lake), southwest China's Tibet Autonomous Region. Baiku Co, with an elevation of 4,590 meters, is located on the border of Nyalam County and Jilong County. (Xinhua/Jigme Dorje)

Aerial photo taken on April 26, 2019 shows the scenery of Baiku Co (Baiku Lake), southwest China's Tibet Autonomous Region. Baiku Co, with an elevation of 4,590 meters, is located on the border of Nyalam County and Jilong County. (Xinhua/Jigme Dorje)