It is rising at the Northern side of the town
Rosbach vor der Höhe located at the edge of the
Taunus mountain range. The town itself was named after this river. Nowadays, the actual location of the spring cannot be determined due to the growing development of the village
Ober-Rosbach, part of
Rosbach vor der Höhe. A small pond inside of a leisure facility supplies the river, from there it is led to the Eastern side of Ober-Rosbach by pipes and, when reaching the
Bundesstraße 455, it leaves the pipe system. At this point, the rivers' tributary
Fahrenbach is connecting. This river springs in the
impact crater-like valley near the mountain
Steinkopf. It transports more water and is longer than the Rosbach river, but the latter kept its name. On raining days the water is cloudy, as the source of the Fahrenbach is located at a former
quartzite quarry. On reaching
Nieder-Rosbach the river Rosbach feeds the
Wasserburg followed by several small
ponds inhabited by
duck populations which contribute to the poor water quality. The river then flows through a
sewage treatment and in a deepening of the
Wetterau it flows towards Ober-
Wöllstadt. From now on, the river is called
Gänsbach, passes a small forest, and flows to Nieder-Wöllstadt. There, the right tributary
Lachengraben is joining and Rosbach enters the
Nidda as
Aubach. ==See also==