Torne |

The Torne, also known as the Tornio (Finnish: Tornionjoki, Swedish: Torne älv, Torneälven, Northern Sami: Duortneseatnu, Meänkieli: Väylä), is a river in northern Sweden and Finland. For approximately half of its length, it defines the border between these two countries. In the upper parts, the river is situated in Sweden before it meets the Muonio River where it adjoins the international border. It rises at the lake Torneträsk near the border with Norway and flows generally southeast for a distance of 522 kilometres (324 mi) into the Gulf of Bothnia. It is the largest river in Norrbotten County both by length and by watershed area.

At its source, Torne is located close to the North Atlantic and Narvik on the other side of the watershed, with several thousands of kilometres between the locations via waterways.
Geography

The Torne basin has a total area of 37,300 square kilometres (14,400 sq mi) or 40,147.1 square kilometres (15,500.9 sq mi) (see sidebar). Of this, 25,392.2 km2 (9,804.0 sq mi)[3] or 25,393.1 km2 (9,804.3 sq mi)[4] is in Sweden, 10,400 km2 (4,000 sq mi)[5] or 14,266.3 km2 (5,508.2 sq mi)[4] is in Finland and 1,500 km2 (580 sq mi)[5] or 497.7 km2 (192.2 sq mi)[4] is in Norway.
Nominal source and hydrological source
The source of the Torne is generally believed to be the lake Torneträsk near the border with Norway. But the main feeder of this lake is Abiskojåkka, flowing out of Abiskojaure, which is mainly fed by Kamajåkka, coming from tributary Gamajávri. This lake's major tributary is Válfojohka. That river comes from Lake Válfojávri in Norway's Nordland, but near to that lake it is joined by a nameless, longer stream, according to official Swedish maps fed by a small glacier, 1,189 m (3,901 ft) above sea level (68°16′02″N 18°07′41″E).