 The Glan riverbed near the bridge between Offenbach and Hundheim has been measured at 171.3 m above sea level.The Talbach has a downstream drop of some 10 m from the municipal limit with Nerzweiler to its mouth.To the east, the mountains reach heights of almost 300 m above sea level at the Feistenberg (see above) and in the west almost 250 m above sea level at the Dumpf (244.9 m).