Tennengebirge

Tennen Mountains
The mighty west face of the Tennen seen from the Hochkönig.
Highest point
Peak	Raucheck
Elevation	2,430 m (7,970 ft)
Dimensions
Length	15 km (9.3 mi)
Geography
Tennen Mountains (in red) within the Alps. The borders of the range according to Alpine Club classification of the Eastern Alps
Location	Northern Limestone Alps, Salzburg, Austria
Country	Austria
Range coordinates	47°30′N 13°14′E / 47.5°N 13.23°E / 47.5; 13.23Coordinates: 47°30′N 13°14′E / 47.5°N 13.23°E / 47.5; 13.23

The Tennen Mountains (German: Tennengebirge) is a small, but rugged, mountain range in the Northern Limestone Alps, which lies in front of the Eastern Alps for its entire length. It is a very heavily karstified high plateau, about 60 km² in area, with many caves. The range is located in Austria in the district of Salzburg near Bischofshofen.

Some 37 square kilometres of the Tennen plateau are above the 2,000 metre line and that part of the range within the state of Salzburg was turned into a nature reserve in 1982.

The outline of the Tennen range is formed:

The highest mountains in the Tennen are Raucheck (2,430 m (AA)) in the west and Bleikogel (2,412 m (AA)) in the east. The highest points all rise on the southern edge of the plateau, which falls away to the north. The most important peaks are:

The Tennen is a heavily karstified massif, composed mainly of Dachstein limestone lying on a foundation of Ramsau dolomite.

Its southern foothills, along the line Lungötz–Werfenweng–Werfen, belong to an imbricate zone (Schuppenzone). This zone, made of Werfen Formation from the Lower Triassic and middle triadic dolomites (Anisian, Ladinian), is called the Werfen-St.-Martin Schuppen Zone.

There are numerous caves in the Tennen Mountains.