Source region of the Yangtze River in NW China

This photo taken on June 14, 2023 shows a view near the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Tian Weiwei) 

The 6,300-kilometer Yangtze River, the longest river in China and the third longest in the world, has three sources, namely the Tuotuo River, the Damqu River in the south and the Qumar River in the north.

Located in the hinterland of the Qinghai-Tibet Plateau between the Kunlun Mountains and the Tanggula Mountains, the Yangtze River source region, with an average elevation of more than 4,500 meters, features spectacular scenery and rich biodiversity. It also has one of the most abundant water resources in the world.

Tibetan antelopes forage near the Qumar River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province, June 15, 2023. (Xinhua/Jin Liwang)

A train runs across a bridge over the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province, June 15, 2023. (Xinhua/Zhang Cheng)

A train runs across a bridge over the Qumar River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province, June 16, 2023. (Xinhua/Jin Liwang)

This aerial photo taken on July 23, 2021 shows a view of the Damqu River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Zhang Long)

Yaks forage near the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province, June 14, 2023. (Xinhua/Zhang Cheng)

This stitched panoramic photo taken on June 15, 2023 shows a view of the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Zhang Cheng)

This aerial photo taken on June 4, 2023 shows a view of the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Zhang Hongxiang)

This photo taken on June 15, 2023 shows a view of the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Jin Liwang)

This aerial photo taken on June 4, 2023 shows a view of the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Zhang Hongxiang)

Tibetan gazelles forage near the Qumar River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province, June 16, 2023. (Xinhua/Jin Liwang)

Tibetan wild donkeys forage near the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province, June 14, 2023. (Xinhua/Zhang Cheng)

This aerial photo taken on June 5, 2023 shows a view of the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Zhang Hongxiang)

This aerial photo taken on July 27, 2022 shows the junction of the Tuotuo River and the Damqu River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Xiao Yijiu)

This aerial photo taken on June 4, 2023 shows a view of the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Zhang Hongxiang)

This photo taken on June 15, 2023 shows a view of the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Zhang Cheng)

This photo taken on June 15, 2023 shows a view of the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Zhang Cheng)

This aerial photo taken on June 16, 2023 shows a view of the Qumar River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Jin Liwang)

Tibetan wild donkeys forage near the Qumar River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province, June 15, 2023. (Xinhua/Jin Liwang)

This aerial photo taken on July 23, 2021 shows a view of the Damqu River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Zhang Long)

This aerial photo taken on June 15, 2023 shows a view of the Tuotuo River at the source region of the Yangtze River, China's longest river, in northwest China's Qinghai Province. (Xinhua/Jin Liwang)