limestone of the Jura, in the east mainly the Dachstein limestone of the Triassic and in the south the Triassic with Zlambachmergel, Pedatakalk, Hallstätter layers, Gutensteiner lime and dolomite in appearance. The west Grundlsee towards Bad Aussee features a high glacial ground moraine from the Würm-glacial period. The gypsum and anhydrite deposit at the settlement of Wienern ( Gößl ) was built from the Upper Permian to the Scythian and consists of alpine Haselgebirge. The lake basin of the Grundlsee was formed during the Würm icing as the tongue basin of a glacier. The settlement nuclei of the villages Bräuhof, Archkogel, Mosern and Untertressen in the west of the municipality are completely on alluvial plains, slope debris areas and ground moraines which are mostly in the Würm-glacial, sometimes postglacial originated. The settlement center of the village Gößl lies entirely on a low terrace from the Pleistocene. The Verkarstung formed many sinkholes and caves, such as the approximately 17 km long Almberg cave system at the foot of the baking stone. Climate The climate in Grundlsee is determined by its geographical location in the Aussee Basin. It is characterized mainly by the high altitude and the location in the northern congestion area. The result is, in the case of flow conditions from the west to the north, often days of precipitation, which in winter are accompanied by a lot of snow. With 100 to 120 days of snow cover per year, the Ausseer Becken is one of the snowiest areas in Austria. From October to May, snowfall is expected, with December to March, on average, every third day has fresh snow. Fall has a relative sunshine duration over 50%, the sunniest time in the region. The climate in the Ausseer basin is often described as a stimulating climate, especially in winter. Conservation A large part of the Grundlsee municipal area is under strict environmental protection. The following nature protection levels exist: Natura 2000 European Conservation Areas ( Dead Mountains with Lake Altaussee - AT2243000), Nature Reserves ( Totes Gebirge West - NSG a 16), Protected caves (including Salzofenhöhle ), Protected landscape parts (GLT-8), Protected Landscape Areas (LSG-14a - Salzkammergut Ost) and Natural monuments (339, 341, 343, 352). The entire municipality is also within the scope of the Alpine Convention. Municipal organization and neighboring communities The municipality consists of the only cadastral Grundlsee and includes five localities (population as of 1 January