| Rotach | |
|---|---|
 The Rotach at Friedrichshafen | |
 | |
| Location | |
| Country | Germany |
| State | Baden-Württemberg |
| Physical characteristics | |
| Source | |
| • elevation | 620 m (2,030 ft) |
| Mouth | |
• location | Lake Constance |
• coordinates | 47°38′59″N 9°29′43″E / 47.64972°N 9.49528°E / 47.64972; 9.49528 (Rotach mouth) |
• elevation | 395 m (1,296 ft) |
| Length | 39.4 km (24.5 mi)1 |
Basin size | 136 km2 (53 sq mi)1 |
| Basin features | |
| Progression | Rhine→ North Sea |
The Rotach is a 39-kilometre-long (24 mi) tributary of Lake Constance, which drains to the Rhine, in the German state of Baden-Württemberg. The river source is near the municipality of Wilhelmsdorf. It flows southward through Horgenzell and Oberteuringen before emptying into Lake Constance at the city of Friedrichshafen.