The
Sill is a 35 km long
river in
Tyrol,
Austria. It is one of the larger tributaries of the
Inn River in the Austrian Tyrol. It flows through the Wipptal valley north to Innsbruck. Its source lies east of the
Brenner Pass. At the "Sillzwickel" - the name of the point where it meets the Inn at Innsbruck - there is a big recreation area, with showers, toilets and cycle tracks.