The Taunus is a mountain range in Hesse, Germany, located north west of Frankfurt and north of Wiesbaden. The tallest peak in the range is Großer Feldberg at 878 m; other notable peaks are Kleiner Feldberg (825 m) and Altkönig (798 m).
The Taunus range spans the districts of Hochtaunuskreis, Main-Taunus-Kreis, Rheingau-Taunus, Limburg-Weilburg, and Rhein-Lahn. The range is known for its geothermal springs and mineral waters that formerly attracted members of the European aristocracy to its spa towns. The car line Ford Taunus is named after it.
The Taunus is the southeastern part of the Rhenish Slate Mountains. The low mountain range is about 75 km long from southwest to northeast and about 35 km wide across it from northwest to southeast,it covers an area of about 2700 km2. In the west, the Upper Middle Rhine Valley borders the Taunus and separates it from the western Hunsrück. In the north, the valley of the Lahn (Giessen-Koblenzer Lahntal) with the Limburg Basin forms a very sharp scenic border to the northern Westerwald. In the east, the Giessen Basin (southernmost part of the West Hessian Uplands) with Dießenbach and Kleebach border to the north, the Wetterau with Wetter and Nidda to the south of the slate mountains; in the south, the Rheingau and the Main-Taunus foothills form natural borders. The last three landscapes are part of the Rhine-Main lowlands.
On the southern edge are the towns of Rüdesheim am Rhein, Wiesbaden, Hofheim am Taunus and Bad Homburg vor der Höhe at the junctions with the valleys of the Upper Rhine and Main; the towns of Bad Nauheim and Butzbach are on the eastern edge at the junction with the Wetterau; in the north on the Lahn the towns of Wetzlar, Weilburg, Bad Ems and Lahnstein border on the Hintertaunus; in the west in the Middle Rhine is, among other things, Lorch at the seam (each in an anti-clockwise direction).
The Taunus is a heterogeneous landscape area, but it is usually quite distinct from the surrounding landscapes and is classified as a main natural area unit group.