With seven main summits, the Külf stretches for about 9 kilometres, lying in a triangle formed by the settlements of Gronau, Alfeld and Duingen. It is located between Eime and Banteln to the north, Dehnsen to the east, Limmer to the southeast, Brunkensen to the south and Hoyershausen, Lübbrechtsen and Deinsen to the west. West of the Külf is another ridge, the Thüster Berg, to the southwest is the Duinger Berg and to the east are the seven hills of the Sieben Berge. The B 3 federal road runs through the Leine valley from Gronau to Alfeld east of the