Lake Constance is situated where Germany, Switzerland, and Austria meet. Its shorelines lie in the German states of Bavaria and Baden-Württemberg, the Swiss cantons of St. Gallen, Thurgau, and Schaffhausen, and the Austrian state of Vorarlberg. The Rhine flows into the lake from the south, with its original course forming the Austro-Swiss border, and has its outflow on the Lower Lake where it forms the German-Swiss border up to the city of Basel.
