Thur, River system in eastern Switzerland.
The Thur is a river system in eastern Switzerland that flows about 135 kilometers through the cantons of St. Gallen, Thurgau, and Zürich. The waterway gathers water from numerous tributaries that join it as it moves toward the Rhine.
The river was first recorded in 886 under the name Dura and shaped the development of surrounding regions. It became known for severe flooding events, with the catastrophic flood of 1999 reaching unprecedented water levels.
The 160-kilometer Thurweg hiking path follows the river from Mount Säntis to Rüdlingen, connecting numerous Swiss communities and wine regions.
The river is easily reached from major towns like Wil, Bischofszell, and Frauenfeld, which sit along or near its course. Walking and cycling are popular ways to explore the river valley, with paths of varying difficulty available throughout the region.
The river's name directly influenced the naming of Thurgau canton, derived from the ancient term Turgowe referring to an early settlement. This linguistic connection reveals how deeply the waterway shaped the region's identity.
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