Claim: Rostojávri is a river that straddles two watersheds: Rostaelva and Rostoeatnu and is located in Kiruna, Norrbotten and Målselv, Troms og Finnmark, measuring 16 kilometres (9.9 mi) in length and 4 kilometres (2.5 mi) in width with a surface area of 34.24 km (13.22 sq mi).
Evidence: Rostojávri (Northern Sami), Råstojaure (Swedish), or Store Rostavatn (Norwegian) is a lake on the border between Norway and Sweden.