SB 5.16.17
tesam visiryamananam ati-madhura-surabhi-sugandhi-bahularuna-rasodenarunoda nama nadi mandara-giri-sikharan nipatanti purvenelavrtam upaplavayati.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
When all those solid fruits fall from such a height, they break, and the sweet, fragrant juice within them flows out and becomes increasingly more fragrant as it mixes with other scents. That juice cascades from the mountain in waterfalls and becomes a river called Arunoda, which flows pleasantly through the eastern side of Ilavrta.