Photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Purbu Zhaxi)

Photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Purbu Zhaxi)

Photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Jigme Dorje)

Photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Purbu Zhaxi)

Aerial photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Jigme Dorje)

Photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Purbu Zhaxi)

Photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Purbu Zhaxi)

Photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Purbu Zhaxi)

Photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Jigme Dorje)

Aerial panoramic photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Jigme Dorje)

Aerial photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Jigme Dorje)

Photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Purbu Zhaxi)

Aerial photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Jigme Dorje)

Photo taken on Oct. 11, 2020 shows the scenery of the Sapukonglagabo Mountain in Biru County of Nagqu, southwest China's Tibet Autonomous Region. With the improvement of transportation conditions, more and more tourists can get access to the Sapukonglagabo Mountain to enjoy the scenery. (Xinhua/Purbu Zhaxi)