Selka is the newest and largest of the five Rapani states in the triangle of lands known as the . The Elirapa is roughly bounded by the to the west, the to the north and the to the east. Selka occupies the lands south of the and along the . Selka is the dominant member of the Rapani confederation known as the .
Selka encompasses 289,200 km². It is predominately lowland with hills in the southern and western parts of the March. Thein the western part of Selka occupy about 14% of its total land area. This region is more rugged than the rest of the hill country and is sparsely settled.
2,874,000 Rapani live in Selka, which is almost half of the population of the . The overwhelming majority of them live in the countryside as farmers or ranchers. There are a scattering of market towns in the countryside as well as the administrative capital of Selka (named ) and the commercial town of .
In peaceful times Selka maintains a ferry service across the, and barges travel from to ports in the .
There are two main road systems in the. The runs east to west, from to , connecting Korslik to the . The runs north from Selka Town to , then across the to on the north bank of the .
The economic and social life of the countryside is dominated by military organizations known as Rhydes. Men must either belong to a Rhyde or seek their fortune in a free town.
There are 42 free towns in Selka, in addition to Rhyde structure. Town citizens are exempt from military service. Instead, each town maintains a town militia that performs policing and garrison responsibilities in peacetime and joins the regular army in wartime.and the chartered . The towns operate independently of the
Selka shoulders most of the burden of defending the Rhyde garrisons the with a mixed force of 120 warriors per tower. A second Rhyde garrisons , at the mouth of the . The Fifth Rhyde patrols the Banakur Forest fringe, sending small patrols deep into the forest and occasionally beyond to raid settlements on the Forest’s eastern fringe.border. Every three months, one Selka