This aerial photo taken on June 9 shows the Luding Bridge on Ya'an-Kargilik County Highway spans over the Dadu River in Luding County, Tibetan Autonomous Prefecture of Garze, China's Sichuan Province. (Photo: China News Service/ Liu Zhongjun)

This aerial photo shows the old China National Highway 318 (G318) on Mount Erlang in Tianquan county, Sichuan Province, on June 10, 2021. (Photo: China News Service/ Liu Zhongjun)

The rugged old China National Highway 318 (R) and Sichuan-Tibet Highway (L) divert in on Mount Erlang in Tianquan county, Sichuan Province, on June 10, 2021. (Photo: China News Service/ Liu Zhongjun)

This aerial photo taken on June 9 shows the Luding Bridge spans over the Dadu River in Luding county, Tibetan Autonomous Prefecture of Garze, China's Sichuan Province. (Photo: China News Service/ Liu Zhongjun)