This aerial photo shows autumn scenery of Hongla Mountain in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Oct. 20, 2023. (Xinhua/Sun Fei)

This aerial photo shows autumn scenery of Hongla Mountain in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Oct. 20, 2023. (Xinhua/Sun Fei)

This photo shows autumn scenery of Hongla Mountain in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Oct. 20, 2023. (Xinhua/Sun Fei)

This aerial photo shows autumn scenery of Hongla Mountain in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Oct. 20, 2023. (Xinhua/Sun Fei)

This photo shows autumn scenery of Hongla Mountain with snow mountains in the background in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Oct. 20, 2023. (Xinhua/Sun Fei)

This aerial photo shows autumn scenery of Hongla Mountain in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Oct. 20, 2023. (Xinhua/Sun Fei)

This photo shows autumn scenery of Hongla Mountain with snow mountains in the background in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Oct. 20, 2023. (Xinhua/Sun Fei)

This photo shows autumn scenery of Hongla Mountain in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Oct. 20, 2023. (Xinhua/Sun Fei)