Haothana

Haothana is a huge (and quite loosely defined) region of Thelbiron; it is generally considered to consist of that portion of the northern continent which begins east of Valgomyr’s mountains and the landbridge connecting to Orithea, stretching all the way to the Gulf of Yrsa. In other words, it is the part of Thelbiron that lies across the Sea of Jalmar (and the Scarlet Sea’s western reaches) from northeastern Orithea. 
Just how far to the north Haothana extends is debatable. The understanding of Haothana as a distinct region is a contrivance of “civilized” Oritheans, who have never penetrated deep into Thelbiron’s interior and know little of its geography beyond what lies on the coast and along a handful of river courses. The Thelbirs that are native to the area don’t view it as such; they understand the lands of Thelbiron in terms of either tribal territories, or more concrete local features such as rivers, valleys, or hill ranges. The patchwork of tribes living in the huge expanse that the Oritheans call Haothana certainly have no particular sense of it as such. Likewise, the Oritheans tend to refer to all the tribes living here as Haothanis or the Haothani tribes, considering them one of the major sub-groups of Thelbirs, but the tribes themselves don’t have any such sense of shared common identity. 
Haothana is mostly flat and low-lying, although with some scattered elevated or hilly areas and a few ranges of low mountains. Like much of the rest of Thelbiron, It is almost completely covered in vast tracts of taiga or evergreen forest. A number of wide rivers meander across the landscape, tributaries braiding and merging, before eventually reaching the Sea of Jalmar or the Scarlet Sea. Orithean presence in Haothana is limited to certain parts of the coastal strip, and relatively tenuous strings of settlements extending up some of these river courses into the interior. 
The Kingdom of Tirnavon has the most substantial presence here, controlling the major entrepots of Medandra, Varandra, and Rothavir (plus their surrounding hinterlands) on the coast, and the sizable inland river-port of Lykadan on the Vaska, along with a number of smaller outposts and settlements. The Kirdan Empire has a lesser presence, centered on the fortified slave-port of Ghalimar. The overwhelming majority of Haothana, however, is dangerous and untamed wilderness to the Oritheans, and only the brave and well-prepared dare to venture out into the vast, trackless taiga of the north.