írku

árku is a fictional river in the fantasy setting of Eldoria. It features in regional folklore and serves as a geographic reference in maps of the northern realms. The name is said to come from the Elanin language, meaning "arc" or "bend," reflective of the river's notably curved course.

The river originates in the Ironcrest Highlands, at elevations around 2,000 meters, and flows 120 kilometers south-southeast to its delta in Lake Veyr. Its course forms several steep bends, including the notable Curved Bend near the town of Nareth. The river is fed by snowmelt and springs, with a young, fast-flowing reach in spring and lower, calm waters in late summer. Average discharge is modest, with seasonal peaks after rains.

Ecology along arku includes trout and small minnow species, with riverine willows and alders lining the banks. The surrounding floodplains support reed beds and migrating waterfowl, creating habitats for a range of bird and aquatic life.

Cultural significance and usage: Communities along arku rely on the river for irrigation, fishing, and transport in ancient times; it features in legends about guardians of the north and the bridging of rival tribes. Annual spring festivals celebrate the river's renewal and its role in local identity.

History and naming: The earliest written references appear in the Chronicles of Northreach (c. 5th century AR). In modern cartography, arku appears on regional maps and is used as a naming element for settlements and institutions in Eldoria.