River, Central and South Asia. From its headsprings in the Tibet Autonomous Region of China (as the Yarlung River), it flows across southern Tibet to break through the Himalayas in great gorges (where it is known as the Dihang). It flows southwest through the Assam Valley and south through Bangladesh (where it is known as the Jamuna). There it merges with the Ganges (Ganga) to form a vast delta. About 1,800 mi (2,900 km) long, the river is an important source for irrigation and transportation. Its upper course was long unknown, and its identity with the Zangbo was only established by exploration in 1884–86.
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The Yamuna (Sanskrit: यमुना, sometimes called Jamuna or Jumna) is a major tributary river of the Ganges (Ganga) in northern India. With a total length of around , it is the largest tributary of the Ganges.
Its source is at Yamunotri, in the Uttarakhand Himalaya, which is north of Haridwar in the Himalayan Mountains. It flows through the states of Delhi, Haryana and Uttar Pradesh, before merging with the Ganges at Allahabad. The cities of Baghpat, Delhi, Noida, Mathura, Agra, Etawah, Kalpi, Hamirpur, Allahabad lie on its banks. The major tributaries of this river are the Tons, Chambal, Betwa, and Ken; with the Tons being the largest.
A heavy freight canal, known as the SYL (Sutlej-Yamuna Link), is being built westwards from near its headwaters through the Punjab region near an ancient caravan route and highlands pass to the navigable parts of the Sutlej-Indus watershed. This will connect the entire Ganges, which flows to the east coast of the subcontinent, with points west (via Pakistan). When completed, the SLY will allow shipping from India's east coast to the west coast and the Arabian sea, drastically shortening shipping distances and creating important commercial links for north-central India's large population.
There is some evidence indicating Yamuna was a tributary of the Ghaggar river in the ancient past. It changed its course to east following a tectonic event in north India and became a tributary of the Ganges instead.
The goddess of the river, also known as Yami, is the sister of Yama, god of death, and the daughter of Surya, the Sun god, and his wife Samjñā. The river Yamuna is also connected to the religious beliefs surrounding Krishna.
In 2005, award winning documentary Jijivisha was made on Yamuna.