East Kalimantan Province, Kutai regency. Area between Adas, Dempar, and Melak towns; then down the Mahakam rivers, east around Djempang lake; area south of Muntaiwan town.
Pahu, Tunjung (Tunjung Tengah), Tunjung Linggang, Tunjung Londong.
High bilingualism with Benuaq dialect of Lawangan [lbx]. Tunjung is rapidly relexifying with Benuaq words (Nikolic 2008).