The map is centered on the Euphrates, flowing from the north (top) to the south (bottom). The city of Babylon is shown on the Euphrates, in the northern half of the map. The mouth of the Euphrates is labelled “swamp” and “outflow”. Susa, the capital of Elam, is shown to the south, Urartu to the northeast, and Habban, the capital of the Kassites is shown (incorrectly) to the northwest. Mesopotamia is surrounded by a circular “bitter river” or Ocean, and eight “regions”, depicted as triangular sections, are shown as lying beyond the Ocean. It has been suggested that the depiction of these “regions” as triangles might indicate that they were imagined as mountains.[1]

Source: Babylonian Map of the World – Wikipedia