Sitter (river)

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Sitter
The Sitter in St. Gallen with Kraftwerk Kubel und the Südostbahn Viaduct
Location
Country	Switzerland
Physical characteristics
Source	Confluence of Wissbach, Schwendibach and Brühlbach in Weissbad
• coordinates	47°18′44″N 9°26′03″W / 47.31222°N 9.43417°W / 47.31222; -9.43417
• elevation	810 m (2,660 ft)
Mouth	Thur
• location	Bischofszell
• coordinates	47°29′52″N 9°13′55″W / 47.49778°N 9.23194°W / 47.49778; -9.23194
• elevation	460 m (1,510 ft)
Length	48.91 km (30.39 mi)
Basin size	340 km2 (130 sq mi)
Discharge
• average	11.89 m3/s (420 cu ft/s)
Basin features
Progression	Thur→ Rhine→ North Sea

The Sitter is the largest tributary of the Thur river, and flows through the Swiss cantons of Appenzell Innerrhoden, Appenzell Ausserrhoden, St. Gallen and Thurgau. It starts on the north side of Alpstein massif in Appenzell Innerrhoden, and joins River Thur near the town of Bischofszell in Thurgau.^[1]