Afon Merddwr
The 883rd longest river in the world
Afon Merddwr is a river in the south of the county of Conwy, Wales. It is a tributary of the River Conwy and joins it near Pentrefoelas. It is about 10 km long. "Merddwr" is Welsh for backwater or stagnant water, suggesting that it was named for its current or water quality.
Flows through: United Kingdom.
River data from Wikidata (CC0); lengths normalised to a common unit.