Lake Constance consists of three bodies of water: the Obersee ("upper lake"), the Untersee ("lower lake"), and a connecting stretch of the Rhine, called the Seerhein ("Lake Rhine"). The lake is situated in Germany, Switzerland and Austria near the Alps. Specifically, its shorelines lie in the German states of Bavaria and Baden-Württemberg, the Austrian state of Vorarlberg, and the Swiss cantons of Thurgau and St. Gallen. The Rhine flows into it from the south following the Swiss-Austrian border. It is located at approximately 47°39′N 9°19′E﻿ / ﻿47.650°N 9.317°E﻿ / 47.650; 9.317.
How many bodies of water makes up Lake Constance?  What does Untersee mean? What lake connects the Rhine to Lake Constance?  Which border does the Rhine flow from the south? What does Obersee mean? How many bodies of water makes up Lake Constance? Besides Germany and Switzerland, where else is Lake Constance? What mountainous region is Lake Constance by? Where is the border of Swiss and Austria? Lake Constance separates the German state Bavaria from what other one?