Schaffhausen, historically known in English as Shaffhouse, is a town with historic roots, a municipality in northern Switzerland, and the capital of the canton of the same name; it has an estimated population of 36,000 as of December 2016. It is located right next to the shore of the High Rhine; it is one of four Swiss towns located on the northern side of the Rhine, along with Neuhausen am Rheinfall, the historic Neunkirch, and medieval Stein am Rhein.

The High Rhine is the name used for the part of the Rhine 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.