Some 60% of the area of the nature park is forested. As a large, contiguous forest, the landscape unit fulfils an ecological balancing function. The Egge Hills and the Teutoburg Forest are thus important components of the state-wide wildlife corridor. A good 85% of the area is protected landscape, some 10% is nature reserve and around 14% is Special Areas of Conservation. In addition, there are about 1,000 designated natural monuments (e. g. trees, rock formations, biotopes).