Ob Sulci (Triton)

Named after the Mouth of this river is Ostiak entrance to underworld.

A sulcus is an are subparallel furrows and ridges. On Triton they are named after aquatic names, excluding Roman and Greek. Possible categories include worldwide aquatic spirits, terrestrial fountains or fountain locations, terrestrial aquatic features, terrestrial geysers or geyser locations, terrestrial islands.