Helgaberget – the holy hill – is a little rocky crag which thrusts itself a few metres above the terraced surface of Støle. The surface of the rock is strewn with figures inscribed in the rock and it was, as far as one can judge, a cult centre in the Bronze Ages. The name could indicate that the tradition of holiness can have lasted for almost 3,000 years.
When the Etne water system was protected in 1994, preservation of the cultural landscape in Stordalen Valley was a a main objective. This is a valley with an exceptional abundance of Different types of plants and animals. In the grey alder forest in Stordalen there are more bird species than in most other places, in fact, denser than one tends to find in a tropical rainforest.