Fosen is a
traditional district in
Trøndelag, consisting of the municipalities
Osen,
Roan,
Åfjord,
Bjugn,
Ørland,
Rissa,
Agdenes,
Snillfjord,
Hemne,
Hitra and
Frøya. The district is dominated by forested valleys, lakes, coastal
cliffs but also shallow areas, and in the interior mountains reaching up to 700 m elevation. The western coast has many
skerries and some islands, such as
Stokkøya in
Åfjord. There are some good salmon rivers, and
sea eagles and other sea birds are very common along the coast, notably on the shallow area near Ørland (
Grandefjæra). The west coast has mild winters, and some locations (just west of the mountains) receive on average more than 2,000 mm of precipitation per year. Part of the
Scandinavian coastal conifer forests (
No: Kystgranskog) are located on the peninsula, and smaller areas are classified as temperate rainforest with several nature reserves. The largest nature reserve is Øyenskavelen (5,316 hectare), with many nature types including undisturbed forest, some of it classified as rainforest.