 Together with the Black Forest and the Rhine plain, the Schönberg forms the third prominent area of land around Freiburg, the foothills of the Black Forest.To the east, the Schönberg is separated from the Black Forest by a valley called the Hexental, to the south by the Staufen Basin, to the north the Bay of Freiburg (Freiburger Bucht) and to the west lies the Rhine Plain .The area thus enclosed is 8 km long and 4 km wide.