What was the name of the river that separated the living from the dead in Mesopotamian myth? The river was called the Hubur.
In Mesopotamian cosmology, the Hubur was commonly understood as the river of the netherworld. The dead had to make a difficult journey across a barren wilderness and cross this river before reaching Kur, the realm of the dead. It therefore functioned as a boundary between ordinary human life and the land from which there was no return.
Some traditions associate the crossing with a ferryman. In the stories of Enlil and Ninlil and the Epic of Gilgamesh, the ferryman is Urshanabi. Later Assyrian tradition gives the ferryman a monstrous form and a different name. The dead then faced the underworld’s gates and its ruling powers, including Ereshkigal and Nergal.
Hubur is not simply the Tigris or Euphrates, although scholars have proposed connections with real waterways, including the Habur River. Styx belongs to Greek mythology. Another complication is that Hubur can mean “river,” “watercourse,” or “netherworld” in different contexts, and some texts use related imagery for waters of death. Even so, Hubur is the standard answer for Mesopotamia’s underworld river.