Gmundnerberg, Mountain summit in Altmünster, Austria

Gmundnerberg is a mountain summit within the Traun- and Atterseer Flysch mountains that rises 884 meters above sea level. From the top, hikers see views across the Traunsee Lake region and the surrounding terrain.

Construction of the Gmundnerbergstrasse began in 1933, financed by the "Produktive Arbeitslosenfürsorge" (productive unemployment relief); the municipality of Altmünster started work in November 1933 with 92 unemployed men. Residents provided the needed land free of charge, with one exception. By the end of 1937 the road was finished up to the Gasthaus "Zur Luft", lacking only fine gravel surfacing.

The plateau holds the Gmundnerberg chapel, an observatory and several inns with car parks, and since 2010 a neurological therapy centre of the Vamed group on the grounds of a long-vacant lung sanatorium. The ridge is heavily built up: working and former farmsteads alternate with modern houses down to the Aurach valley.

The Gmundnerbergstraße (L1301) branches north from the L1299 near the hamlet of Edt and climbs in a winding course to the plateau. East of the Gmundnerberg chapel it is open to local traffic only, then continues over the ridge and merges into the Pinsdorfbergstraße at the marl quarry. Several small lanes along the ridge lead to private houses and are also used as walking paths.

The plateau holds a neurological therapy centre opened in 2010 by the Vamed group, built on the grounds of a pulmonary sanatorium that stood empty for years. Nearby stand a chapel, an observatory and excursion inns with car parks.