The High Rhine (German: Hochrhein) is the name used in Germany for the part of the Rhine River that flows westbound from Lake Constance to Basel. The High Rhine begins at the outflow of the Rhine from the Untersee in Stein am Rhein and turns into the Upper Rhine in Basel. In contrast to the Alpine Rhine and Upper Rhine, the High Rhine flows mostly to the west. The term High Rhine was introduced by scientists in the 19th century.Above all geologists tried to differentiate the High Rhine linguistically from the Upper Rhine. Until the 19th century, it was also known as the "Badisch-Swiss Rhine".