Grauer Kopf (Holzhausen)

Rettert is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany. It belongs to the association community of Aar-Einrich.

Berndroth is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany. It belongs to the association community of Aar-Einrich.

Oberfischbach is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany. It belongs to the association community of Aar-Einrich.

Heidenrod is a municipality in the Rheingau-Taunus-Kreis in the Regierungsbezirk of Darmstadt in Hesse, Germany. Seat of municipal administration is to be found in the most populated municipal district, in Laufenselden.

Holzhausen an der Haide is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany. Holzhausen is the birthplace of Nicolaus August Otto, the inventor of the "Otto Engine".

Mittelfischbach is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany. It belongs to the association community of Aar-Einrich.

Mappershainer Kopf is a hill in Hesse, Germany, part of the Taunus range. It rises to a height of 548 metres, making it the highest peak in the western part of the Taunus. The nearest settlement is Mapperhain and the nearest town is Heidenrod. The hill is located about one km west of the watershed point between the Dörsbach river to the north and the Wisper in the west, both of which originate here, and the Aar in the east (all tributaries of the river Lahn). The B260 federal highway passes close by.

The Free State of Bottleneck (German: Freistaat Flaschenhals) was a short-lived quasi-state that existed from 10 January 1919 until 25 February 1923. It was formed out of part of the Prussian province of Hesse-Nassau as a consequence of the occupation of the Rhineland following World War I. The Bottleneck is now part of the modern German states of Hesse and Rhineland-Palatinate.

Ergeshausen is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany. It belongs to the association community of Aar-Einrich.

Herold is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany. It belongs to the association community of Aar-Einrich.

Obertiefenbach is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany.

Dörsdorf is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany. It belongs to the community of Aar-Einrich.