Wiesbaden is situated on the right (northern) bank of the Rhine River, below the confluence of the Main, where the Rhine's main direction changes from north to west. The city is across the Rhine from Mainz, the capital of the federal state of Rhineland-Palatinate. Frankfurt am Main is located about 38 kilometres (23.6 mi) east. To the north of the city are the Taunus Mountains, which trend in a northeasterly direction.
The city center, the Stadtmitte, lies about 5 kilometres (3.1 mi) from the Rhine, in a wide lowland between the Taunus heights in the north, the Bierstadter H�he and the Hainerberg in the east, the Mosbacher Mountain in the south, and the Schiersteiner Mountain in the west, an offshoot of the Taunus range. The downtown is drained only by the narrow valley of the Salzbach, a tributary of the Rhine, on the eastern flanks of the Mosbacher Mountain. The city's main railway line and the Mainz road (Mainzer Stra�e) follow this valley. Several other streams drain into the Salzbach within the city center: the Wellritzbach, the Kesselbach, the Schwarzbach, the Dambach, and the Tennelbach, as well as the outflow of many thermal and mineral springs in the Kurhaus (spa) district. Above the city center, the Salzbach is better known as the Rambach.
The highest point of the Wiesbaden municipality is located northwest of the city center near the summit of the Hohe Wurzel, with an elevation of 608 metres (1,995 ft) above sea level. The lowest point is the harbour entrance of Schierstein at 83 metres (272 ft) above sea level. The central square (the Schlossplatz, or palace square) is at an elevation of 115 metres (377 ft).
The Wiesbaden municipality covers an area of 204 square kilometers. It is 17.6 kilometres (10.9 mi) from north to south and 19.7 kilometres (12.2 mi) from west to east. In the north are vast forest areas, which cover 27.4% of the urban area. In the west and east are vineyards and agricultural land, which cover 31.1% of the area
