Helvanderûn

The Helvanderûn is the low-lying riparian plain surrounding the middle and lower reaches of the River Helvander; it can be defined as the flood plain of the Helvander or the bottomland making up the floor of its valley. The term generally excludes parts of the larger Helvander valley such as the surrounding hill country, tributary valleys, and the whole upper part of the river (mostly in Gundarra), where its valley is too narrow to have a substantial floodplain. The lowest and widest part of the Helvanderûn, where the river flows into Orphan-Bird's Bay and the valley bottom opens out into coastal plain, is known as Modrinia.
The Helvanderûn is the agricultural heartland of the Helvander Valley and the Taefemach region, and of the Helvandrian League, within whose borders it lies. The Helvanderûn is home to most of the area's population and major towns, since it is the most suitable for farming and lies directly along the river itself (which serves as the region's biggest route of trade and transport).
Etymology: The Helvanderûn's name is of course derived from that of the River Helvander, appended with the old Tuvai suffix -rhun or -rûn, often seen in place names and denoting "the area around," "the margin," "the vicinity," or "that which is near" (cf. Torrune). Thus it simply means the area near to or surrounding the Helvander itself.