Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)

Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)

Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)

Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)

Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)

Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)

Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)

Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)

Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)

Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)

Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)

Photo taken on Oct. 21, 2019 shows a view of the Purog Kangri glacier which is located deep within the Qiangtang National Nature Reserve, about 90 kilometers northeast of Shuanghu County, Nagqu, southwest China`s Tibet Autonomous Region. Shuanghu County has suspended tourism services relevant to the Purog Kangri glacier since June 1, 2018 to ensure better ecological recovery there. (Xinhua/Chogo)