| Jona | |
|---|---|
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| Location | |
| Country | Switzerland |
| Cantons | St. Gallen, Zürich |
| Physical characteristics | |
| Source | |
| • location | Bachtel mountain |
| • elevation | 950 metres (3,117 ft) MAMSL |
| Mouth | |
• location | Obersee (Zürichsee) near Busskirch (Rapperswil-Jona) |
• coordinates | 47°12′55″N 8°50′38″E / 47.2153°N 8.8438°E |
• elevation | 406 metres (1,332 ft) MAMSL |
| Length | 18.8 kilometres (11.7 mi) |
| Basin size | 78.4 square kilometres (30.3 sq mi) |
| Basin features | |
| Progression | Lake Zürich→ Limmat→ Aare→ Rhine→ North Sea |
The Jona is a river in the Swiss cantons of Zürich and St. Gallen, forming partly their mutual border, and one of the main tributaries of Obersee, Lake Zurich.