Utrechtse Heuvelrug National Park occupation. Intensive land use, reforestation and the building of country estates transformed the appearance of the Utrechtse Heuvelrug over the centuries. The history of the region is reflected in the wide variety of soil types, relief and land use. The Utrechtse Heuvelrug is the second largest forest area in the Netherlands. In the forest some relics from the original post-glacial forests can be found, including oak and beech. In the park several marten species can be found, such as the European badger ("Meles meles") and the European pine marten ("Martes martes"). There are more than 100 bird species living in
European land mammal age European land mammal age The European Land Mammal Mega Zones (abbreviation: ELMMZ, more commonly known as European land mammal ages or ELMA) are zones in rock layers that have a specific assemblage of fossils (biozones) based on occurrences of fossil assemblages of European land mammals. These biozones cover most of the Neogene and Paleogene systems (i.e. rock layers which are 65.5 to 2.588 million years old). In cases when fossils of mammals are abundant, stratigraphers and paleontologists can use these biozones as a more practical regional alternative to the stages of the official ICS geologic timescale. European Land Mammal Mega