Koerdia

Koerdia is a region of north-central Rhydain, generally considered to include all the mountainous country north of the Adhemars between the Modrinian lowlands to the east and the River Streva in the west. Across the Adhemars to the south lies the Helvander river valley and the Taefemach. The Koerdian landscape is mostly high and rugged but the mountains slope down to a narrow strip of fertile coastal plain along the Sea of Pearls and the Sea of Tyrus. 
A large part of Koerdia lies within the domain of the great dwarven empire of Kuzul-Kadrin, especially along the north slope of the Adhemars and the adjacent ranges. As elsewhere in Kuzul-Kadrin, the human inhabitants in their above-ground towns are allowed a good deal of autonomy by the mostly subterranean dwarves, provided they remain peaceful and don't interfere in dwarven business. Much of this region is encompassed by the Koerdian Freehold, a peculiar sort of quasi-client state which contains most (but not all) of the Koerdian human settlements inside Kuzul-Kadrin's borders, and also extends beyond those borders to include a substantial area of Koerdian territory outside dwarven rule.