Now it enters the canton of Zurich, nearby Samstagern passing Hütten and the rapid called Sihlsprung situated in Schönenberg, flowing through the valley between the Zimmerberg and Albis chains. Near Sihlbrugg, the rivers passes the Sihlwald, the largest remaining deciduous forest of the Swiss Plateau, located between Sihlbrugg and Zürich-Leimbach. The Sihl flows in Zürich underneath Zürich Hauptbahnhof - parts of the train station are built below the Sihl - before joining the Limmat at Platzspitz park located at the Swiss National Museum.