Sihl, River system near Hauptbahnhof, Switzerland
The Sihl is a river system flowing about 73 kilometers through the cantons of Schwyz, Zürich, and Zug before joining the Limmat River. The waterway passes beneath Zürich Hauptbahnhof through engineered tunnels, with sections of the train station built directly above it.
The river first appeared in written records in 1018 as Sylaha, suggesting Old European or Celtic language roots. Since then, human intervention has reshaped it, particularly with the creation of the Sihlsee reservoir in the 20th century.
The river shapes the valley with walking paths and green spaces where people spend time outdoors throughout the year. Locals and visitors alike frequent the banks for recreation and relaxation.
The river is accessible from the banks in many locations, especially in the Sihl Valley with well-developed walking paths. Visitors should know that accessibility varies depending on season and water levels.
The Sihlsee, Switzerland's largest artificial lake, was created by a 33-meter dam that deliberately regulates the river's flow. This reservoir controls water volume downstream, especially during winter months.
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