The northern spur of the Hohe Egge is called the Harberg (554.3 m), its eastern spur is the Niegelscheid (580.7 m) and its southern spur is unnamed (601.0 m). The Diemel runs past the hill to the east, feeding the eastern arm of the Diemelsee and, after flowing through the reservoir, continues down to the Weser. To the northwest the Holzbach stream rns through Ottlar flowing northeast and a little above the eastern arm of the reservoir into the Diemel.