They are spoken in a mountainous stretch of region located between the towns of Wewak and Angoram in the Marienberg Hills of East Sepik Province, Papua New Guinea.

[1] Marienberg languages distinguish masculine and feminine genders, with feminine being the default unmarked gender.

[1]: 298 Foley (2018) provides the following classification, based primarily on morphological evidence.

[1] There is also Forok, labeled as a variety of Bungain in survey vocabularies.

Pronouns in selected Marienberg Hill languages:[1]: 304