baumzaehlen - Primeval Forests & Their Trees

©2019copyright christoph hase

Isojärvi National Park, Finland


This park (22 km2) mostly consists of previously managed forest but there are also old-growth areas. The best preserved forests are in the Lortikanvuori, Vahterinvuori and to the north of lakes Kuorejärvi and Hevosjärvi, where one of the most valuable sites is located: Latokuusikko, a primeval Opens internal link in current windowPicea abies (Norway spruce) forest with a herb-rich understory on fertile soil. P. abies reaches heights of more than 40 m there – a remarkable size for the latitude (about 62°N).


Tree species diversity is low and most species are easy to identify. Opens internal link in current windowPinus sylvestris (Scots pine) and P. abies dominate. Altitude is about 120–200 metres. Annual precipitation is about 600 mm and average annual temperature 3–4°C.


Off-trail hiking is fairly easy. Camping is allowed only at designated sites.


Official site:


Picea abies (Norway spruce) dominated forest at Latokuusikko. Betula pendula (silver birch) group, centre. Populus tremula (common aspen, thick trunks, right background). Some small Sorbus aucuparia (European rowan).
Dry Pinus sylvestris (Scots pine) forest. Also Picea abies (Norway spruce, with dense foliage) and Betula pendula (silver birch, foreground).
Hevosjärvi. Pinus sylvestris (Scots pine) forest. Also Picea abies (Norway spruce, with dark green crowns) and Betula pendula (silver birch, broadleaf trees).
Picea abies (Norway spruce) forest at Latokuusikko. 35-metre Populus tremula (common aspen, centre), one of the tallest of the species in Finland, backed by 33-metre P. tremula. Also Sorbus aucuparia (European rowan) saplings.
31-metre Tilia cordata (small-leaved linden) surrounded by Picea abies (Norway spruce) in Latokuusikko.