The Amparûn

The Amparûn is the huge valley or basin of the river Ampara, which arises in the highlands of Khadoa’s northern interior and runs down to reach the Sea of Dreams on Enyrion’s coast. The name “Amparûn” stems from the river’s name combined with the old Tuvai root “-rune” or “-rûn,” denoting “the area around” or “that which is near” (cf. Torrune, the Helvanderûn). In this case, it means “the lands around the river Ampara.” 
The Amparûn is typically divided into three distinct portions: The Upper, Middle, and Lower Amparûn. The first is the wide northern part of the river’s basin, almost completely surrounded by the uplands of Khadoa and the northwest edge of Shiankar’s plateau, except where it flows out in the south. The Middle Amparûn is the narrower central section of the river’s valley, bounded to the west by the southernmost of the Khadoan highlands and to the east by the flank of the Tuzul Massif. The Lower Amparûn begins where this narrower middle section turns west, away from the foothills of the Khalkus range, and opens out onto the flat plain of Enyrion. Here it broadens into a huge swath of open riparian lowlands surrounding the Ampara on its course down to the sea. 
The Upper Amparûn is unambiguously a part of Khadoa, and the Lower Amparûn lies within Enyrion; the Middle Amparûn is usually thought to lie within Khadoa, though some would say that it straddles the boundary between the two regions.