Srimad Bhagavatam Canto 05, Chapter 17, Text 07

SB 5.17.7

evam malyavac-chikharan nispatanti tato ’nuparata-vega ketumalam abhi caksuh praticyam disi sarit-patim pravisati.
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The branch of the Ganges known as Caksu falls onto the summit of Malyavan Mountain and from there cascades onto the land of Ketumala-varsa. The Ganges flows incessantly through Ketumala-varsa and in this way also reaches the ocean of salt water in the west.
Srimad Bhagavatam Canto 05, Chapter 17, Text 06
Srimad Bhagavatam Canto 05, Chapter 17, Text 08