There are many different tree species in the Park, considering the diversity of physical and ecological climatic conditions. Their composition also reflects the territory’s human history, which has modified the original forest (logging, creation of pastures and meadows, hunting).
The Park has 42 different tree species. The main species in terms of volume are: Fir 30%, Spruce 29% (introduced species), Beech 13%, Oaks 5% (mainly Sessile Oak), Douglas Fir 5% (introduced species), Maple 4%, Ash 3% (declining due to disease), other hardwoods 10% (elm, lime, rowan, birch, alder, walnut, etc.), and the other two species (oak and oak).