Barito River
The Barito River is the second longest river in Borneo, Indonesia after the Kapuas River with a total length of and a drainage basin of over in South Kalimantan, Indonesia. It originates in the Müller Mountain Range, from where it flows southward into the Java Sea. Its most important affluent is the Negara and Martapura, and it passes through the city of Banjarmasin.
This river is the location of the closest relative of the Malagasy language of Madagascar, the Ma'anyan language of Dayaks, from where settlers arrived in Madagascar from the 3rd to 10th century and from which the current island nation's population largely traces its origins.