Six Countries the Rhine River Flows Through

The Rhine traverses six sovereign states from source to sea:

1. Switzerland — Source (Lake Toma, 2,345 m); upper alpine reach
2. Liechtenstein — Forms entire western border (27 km)
3. Austria — Brief 10 km border stretch (Lake Constance inflow)
4. Germany — Longest national segment (~865 km); industrial heartland
5. France — Upper Rhine forms 180 km border (Alsace)
6. Netherlands — Delta distributaries (Waal, Nederrijn, IJssel) to North Sea

International Governance

• Central Commission for Navigation on the Rhine (CCNR) — est. 1815, world's oldest international river org
• International Commission for the Protection of the Rhine (ICPR) — "Rhine 2040" program (ecology, flood, chemicals)
• EU Water Framework Directive — binds DE, FR, NL, AT; CH & LI align voluntarily

Key Transboundary Structures

• Lake Constance (Bodensee) — tri-national (DE/AT/CH), no settled borders
• Iffezheim & Gambsheim locks — Franco-German hydro/navigation
• Rhine–Meuse–Scheldt delta — Dutch multi-distributary management

One river, six flags, shared stewardship — the Rhine is Europe's most institutionalized waterway.