→ Vereinigung River

The longest river in the world, its source is the Gyl Sea.
It winds through the Grand Mountain range in a mostly southwest direction, dividing the Northern Grand Region in the Northeast and Northwest Regions. It curves west, splitting the Grand into the Northern and Southern Regions. It runs through the Northern Basque Plains toward Handel, where it empties into the Gulf of Baldr.
It has numerous tributaries that branch off into the Grand.
Though parts of the river are frozen over during the bitterly cold Märmosian winters, it is an invaluable trade and transportation route throughout the massive Grand Mountain Range.