:For the goddess of the river who is sometimes called Yamuna, see Yami 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's 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 merg… (More on Yamuna)