The line passes through Taunusstein, Bad Schwalbach (called Langenschwalbach until 1927), Aarbergen and Hahnstätten, which all lie in the Aar valley in the western Hintertaunus (the lower north-western ridges of the Taunus).
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The line, which today is largely in the area of the municipalities of Hahnstätten and Diez, follows the relatively wide and flat Aar valley.
Bruno Weil (born 1949, Hahnstätten) is a symphonic conductor.