Ormstrup Hede is an open area that gives a good impression of the landscape on Skovbjerg hill island (Figure 35-3). In the periglacial environment that affected the area during the Weichselian glaciation the landscape was modified and “flattened out” by soil creep. The area has also been subjected to erosion by running water which has resulted in several deep gullies.
The geological significance of the area is the presence of open stretches where both hill island and river valley landscapes can be appreciated. Idom Å valley and Ormstrup Hede heathland are included in National Geological Interest area NGI 77 (Skovbjerg Bakkeø), and both the valley and the heathland have been listed as Natura 2000 site. The entire area has been preserved to keep the landscapes intact and to ensure that it is accessible as a scientific reference site.
Ormstrup Hede and adjacent areas contain a large concentration of barrows (about 20). Parking facilities are provided and there are marked paths. It is important that the area is kept free of invasive plants so that the form of the landscape is clearly visible. The Danish Nature Agency maintains the area by felling trees, cutting grass, providing fencing and grazing.