Which important South Asian rivers begin high in the Himalayas?

* Source: Mansarovar Lake, Tibet, China

* Length: 3,200 km (2,000 mi)

* Basin area: 1.16 million km² (450,000 mi²)

* Countries: China, India, Pakistan

Ganges River

* Source: Gangotri Glacier, Uttarakhand, India

* Length: 2,525 km (1,570 mi)

* Basin area: 1.08 million km² (420,000 mi²)

* Countries: India, Bangladesh

Brahmaputra River

* Source: Angsi Glacier, Tibet, China

* Length: 2,900 km (1,800 mi)

* Basin area: 938,000 km² (362,000 mi²)

* Countries: China, India, Bangladesh

Yamuna River

* Source: Yamunotri Glacier, Uttarakhand, India

* Length: 1,376 km (855 mi)

* Basin area: 366,223 km² (141,399 mi²)

* Countries: India