The northernmost nature park in South Tyrol comprises an area of around 31,334 hectares, spread across the municipalities of Sand in Taufers, Gais, Percha, Rasen-Antholz, Ahrntal and Prettau. The park is bordered to the north-west by the Tauferer Ahrntal valley floor. To the east as far as the Staller Sattel, the park border runs alongside the national border with Austria. To the south-east, the conservation area borders the Antholz Valley, whilst to the south it is bordered by the Puster Valley.
The heart of the protected area is formed by the Rieserferner Group with impressive summits such as Hochgall, Magerstein and Schneebige Nock. The Durreck Group and Durreckspitze lie between the Reintal and Ahrntal valleys. The Dreiherrenspitze and Rötspitze summits are among the most imposing in the Venediger Group.
An abundance of water in the form of mountain streams, waterfalls and lakes is characteristic of the park. The mixed coniferous forest provides the perfect living conditions for foxes, badgers, pine martens and pygmy owls. Golden eagles nest here regularly, whilst marmots amuse themselves on the lush grazing grass amongst the arnica, golden cinquefoil and catsfoot. The bottoms of the long valleys and small side valleys are densely populated, while on the steep slopes, scattered small hamlets lie with heavily utilised alpine pasture areas and mountain hay meadows. Above the tree line are the mountain pastures, which are grazed by cattle and sheep and mown in the summer months.