Scenery of Sapukonglagabo Mountain in Nagqu, China's Tibet

Tourists take photos near the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region, May 4, 2021. (Xinhua/Sun Ruibo)

Photo taken on May 4, 2021 shows a view of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. (Xinhua/Sun Ruibo)

Photo taken on May 4, 2021 shows a view of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. (Xinhua/Sun Ruibo)

Photo taken on May 4, 2021 shows a view of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. (Xinhua/Sun Ruibo)

Birds fly around the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region, May 4, 2021. (Xinhua/Sun Ruibo)

Aerial photo taken on May 4, 2021 shows a view of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. (Xinhua/Sun Ruibo)

Photo taken on May 4, 2021 shows a view of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. (Xinhua/Sun Ruibo)

Photo taken on May 4, 2021 shows a view of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. (Xinhua/Sun Ruibo)