In the north is the municipality of Wildflecken. From there the natural region's boundary with the Kreuzberg Group runs east-southeast along the valley between the Feuerberg and Kreuzberg in order finally to follow the Kellersbach after the Guckas Pass. North of Langenleiten the boundary runs southwards in order to leave the valleys of the tributaries of the Kleiner Steinach. Continuing westwards, the boundary of the natural region runs through the villages of Platz and Geroda.