evidence: Lake Constance, known in German as Bodensee, is more than a mere body of water; it’s a grand natural spectacle located at the northern foot of the Alps. This remarkable lake, shared by Germany, Switzerland, and Austria, is a gem in the heart of Europe. Spanning a maximum length of 63 kilometers and a width of up to 14 kilometers, Lake Constance covers a vast area of 536 square kilometers. Its average depth of 90 meters and a maximum depth of 251 meters add to its mystique. [...] Lake Constance comprises three distinct sections: the Upper Lake (Obersee), the Lower Lake (Untersee), and the Lake Rhine (Seerhein), connecting the two. These bodies of water reside within the expansive Lake Constance Basin in the Alpine Foreland, with the Rhine River playing a pivotal role in their formation and sustenance. The lake’s shoreline touches the German states of Baden-Württemberg and Bavaria, the Swiss cantons of St. Gallen, Thurgau, and Schaffhausen, and the Austrian state of Vorarlberg. [...] Lake Constance is a crucial source of freshwater for the region, with a water volume of approximately 48 cubic kilometers. The catchment area of the lake extends far and wide, reaching altitudes as high as 3,613 meters above sea level at Piz Russein.