Zimmerberg

Zimmerberg mountain is located some 15 km (9.3 mi) in the southeast of the city of Zürich, between Langnau am Albis in the Sihl Valley (German: Sihltal) and Rüschlikon and Horgen on the Lake Zurich, overlooking Sihl valley, the Albis hills, Lake Zurich and Pfannenstiel.

Points of interest include Hüttnersee and, on the neighbouring Albis chain, Albishorn (909 metres (2,982 ft)), Bürglen mountain (914.6 metres (3,001 ft)), the observation tower near Schnabelburg, the Albis Pass, Felsenegg and the extensive woods known as Sihlwald.

The term "Region Zimmerberg" usually refers to the mountain, the area and plateau between Kilchberg–Richterswil–Samstagern on Lake Zürich and partially to the Shil valley.

This region includes the municipalities of Hirzel, Horgen, Hütten, Kilchberg, Oberrieden, Richterswil, Rüschlikon, Schönenberg, Thalwil, Wädenswil, and in the Sihl Valley the communities of Adliswil, Langnau am Albis and Sihlbrugg.

Zimmerberg Base Tunnel is a railway tunnel divided into two parts: The first is about 10 km (6.2 mi) long and links Zürich and Thalwil; the second part will bring the length to about 20 km (12 mi) linking Zürich and Zug.

Zimmerberg and Sihl Valley as seen from Felsenegg (April 2010)
Zürichsee and eastern slope of the Zimmerberg (to the right)
Hüttnersee and Zimmerberg plateau as seen to the northwest, Lake Zürich and Pfannenstiel in the background