Barito River
The Dayak Dusmala (Dusun-Maanyan-Lawangan) that use Eastern Barito language inhabit the northern region of the Meratus Mountains uses the Dayak Maanyan Warukin language, Dayak Samihin language, Dayak Dusun Deyah language, Dayak Lawangan language, and Dayak Abal language . While the Dayak Biaju that uses the Western Barito language inhabits the streams of the Barito River uses numerous language among others Dayak Bakumpai language and Dayak Barangas language . The Dayak Ngaju language, a language originating from Central Kalimantan is used as a liturgical language in the Borneo Evangelical Church headquartered in Banjarmasin.