Söderåsen National Park is located 30 km (19 mi) east of Helsingborg in Scania.
In Swedish the word ås commonly refer to eskers, a glacial landform, but in the case of Söderåsen it corresponds to a tectonic landform called horst. The last glacial ice sheet, the Weichsel ice, left the area of Söderåsen 14,000 to 13,500 years BP. Folling this there was a period up to 12,700 years BP of cold non-glacial conditions with permafrost and strong winds.
On Söderåsen is the viewpoint Kopparhatten at a height of 200 m (660 ft). It is the highest point in Söderåsens national park. This part of the hill has a particularly dramatic landscape, with up to 90 m (300 ft) deep ravines. Various nivation hollows exists in the vacinities of Kopparhatten.
The Kvärkabäcken and Skäralid streams that traverses Söderåsen are believed to be antecedent rivers that existed prior to the present-day relief. These rivers may date to Neogene times when the South Småland peneplain formed. The streams were then likely modified by meltwater during the deglaciations.
Oden Lake (Swedish: Odensjön) is a lake in Scania, in Sweden and belongs to Söderåsens National park. The lake is circular in shape, with a diameter of 150 m (490 ft) and it is 19 m (62 ft) deep. Oden Lake likely formed from a glacier niche, and the name Oden Lake may have been due to the circular shape as compared to the Norse god Odin's one eye. Earlier views have suggested the lake may be an volcanic explosion crater, a nivation hollow or formed by fluvial erosion or as plunge pool of glacial meltwater. These various theories that had accumulated up to the 1980s were proposed by Alfred Gabriel Nathorst, Lennart von Post, Mats Åkesson and Anders Rapp among others.