Ya (river)
The Ya is a river in the municipality of Tynset in Innlandet county, Norway.
The river starts as the confluence of the Nordya and Storya north of the Grøntjørnan farm. The Midtya is a higher tributary of the Nordya. The largest source of the Ya is Falningsjøen via the tributary Falninga; the lake is used as a reservoir for the Ulset Hydroelectric Power Station. The river is a right tributary of the Orkla River, which it flows into from the east with its mouth at Yset near Norwegian National Road 3. Together with its tributaries, the Ya has a drainage area of. The Ya river system runs through Forollhogna National Park and the Grøntjønnan Nature Reserve.
