The Torne river (River Tornio), called väylä (channel or passage) in Meänkieli, is more than 500 kilometres long. The source of the river is Lake Tornio in Sweden and it flows into the Bay of Bothnia at the border of Tornio and Haparanda, its course forming a natural border between Sweden and Finland along the way.
The Tornio is a renowned salmon river. It is the longest free-flowing river in Europe and a significant aspect of the entire culture of the Tornio River Valley. It crosses the Arctic Circle at the village of Turtola.