Jona

General data
- Water type: River
- Progression: Lake Zurich -> Limmat -> Aare -> Rhine -> Waal -> Upper Merwede (Boven Merwede) -> Lower Merwede (Beneden Merwede) -> Old Meuse (Oude Maas) -> Het Scheur -> Nieuwe Waterweg (New Waterway) -> North Sea -> Atlantic Ocean -> Planet Earth
- Climates: Continental
- Continents: Europe
- Countries: Switzerland
Description
The Jona is a 19 km long 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.