An aerial drone photo taken on June 27, 2024 shows the Guanggai Mountain in Gannan Tibetan Autonomous Prefecture of northwest China's Gansu Province. (Xinhua/Chen Bin)

An aerial drone photo taken on June 27, 2024 shows the Guanggai Mountain in Gannan Tibetan Autonomous Prefecture of northwest China's Gansu Province. (Xinhua/Chen Bin)

An aerial drone photo taken on June 27, 2024 shows the Guanggai Mountain in Gannan Tibetan Autonomous Prefecture of northwest China's Gansu Province. (Xinhua/Chen Bin)

An aerial drone photo taken on June 27, 2024 shows the Guanggai Mountain in Gannan Tibetan Autonomous Prefecture of northwest China's Gansu Province. (Xinhua/Chen Bin)

An aerial drone photo taken on June 27, 2024 shows the Guanggai Mountain in Gannan Tibetan Autonomous Prefecture of northwest China's Gansu Province. (Xinhua/Chen Bin)

An aerial drone photo taken on June 27, 2024 shows the Guanggai Mountain in Gannan Tibetan Autonomous Prefecture of northwest China's Gansu Province. (Xinhua/Fang Xin)

An aerial drone photo taken on June 27, 2024 shows the Guanggai Mountain in Gannan Tibetan Autonomous Prefecture of northwest China's Gansu Province. (Xinhua/Fang Xin)

An aerial drone photo taken on June 27, 2024 shows the Guanggai Mountain in Gannan Tibetan Autonomous Prefecture of northwest China's Gansu Province. (Xinhua/Fang Xin)

An aerial drone photo taken on June 27, 2024 shows the Guanggai Mountain in Gannan Tibetan Autonomous Prefecture of northwest China's Gansu Province. (Xinhua/Fang Xin)

An aerial drone photo taken on June 27, 2024 shows the Guanggai Mountain in Gannan Tibetan Autonomous Prefecture of northwest China's Gansu Province. (Xinhua/Fang Xin)