AT A GLANCE
Why go?
Øyuvsvatn is a highland lake sitting at nearly 750 metres above sea level in the remote interior of Fyresdal municipality, Telemark, Norway. With an area of roughly 3.2 square kilometres and a shoreline stretching over 13 kilometres, it is one of the larger waters among the 377 named lakes in this heavily forested municipality.↗↗↗
The lake feeds the Arendal river system via its outflow stream, Skarstøylåa, but since 1972 its natural flow has been interrupted by a dam and tunnel system that diverts water into a neighbouring catchment for hydropower generation at the Finndøla plant. This makes Øyuvsvatn an unusual place where wild highland scenery meets Norway's industrial water-management landscape.↗
Setting and Character
Øyuvsvatn lies at 748.85 metres elevation on the rolling, spruce-covered plateau between Åmdals Verk and the higher mountain terrain of Telemark. The lake's catchment basin spans 18.27 square kilometres, collecting meltwater and rainfall from surrounding fells and marshland. Its approximately 13.7-kilometre coastline means there is considerable shoreline to explore, though no developed tourist facilities or marked trails are documented at the lake itself.↗↗
The nearest settlements are Åmdals Verk, a historic mining village, and the small town of Dalen about 19 kilometres to the south. Fyresdal centre sits roughly 15 km to the west. The area around Øyuvsvatn belongs to a landscape of forested ridges, boggy clearings, and scattered smaller waters, including Øysævatn just 4 km away and Ulvsvatn about 6 km further.↗
Water and Power
Naturally, Øyuvsvatn's outflow runs through Skarstøylåa into Liåni, passing through Kleivvatn, Ramnvatn, and Ramnåi before reaching Bondalsvatn, which feeds the Finndøl river — a tributary heading toward the large Fyresvatn lake and ultimately part of the Arendalsvassdraget (Arendal watercourse) system that drains toward the Skagerrak coast.↗↗
Since 1972, however, a dam has blocked this natural outflow. Water is redirected via a canal into Reinmostjørn and through a tunnel to Mørktjønnstøylen, from where it reaches Øysævatn for storage and onward to the Finndøla hydropower station. The lake thus functions as a regulated headwater reservoir, though it was never a natural lake that was flooded — its form and surroundings remain largely undisturbed.↗
Visiting the Area
Fyresdal municipality is known as a quiet outdoor recreation area in the Telemark highlands interior. Brown trout is the dominant species across the municipality's waters, with whitefish and Arctic char also recorded. Fishing regulations in Norway are set per watercourse and per water by local rights holders, so anyone angling in this catchment should confirm current rules before setting up.↗
For hikers and nature enthusiasts, the region around Øyuvsvatn offers the kind of unmarked, roadless highland terrain typical of eastern Telemark. The lake is not a destination with parking lots or information boards, but it rewards those who approach it from Åmdals Verk or by traversing the forested plateau from nearby waters.↗
Practical Notes
The lake sits well off the main routes through Telemark. Access is likely via small forest roads branching from the R41 between Dalen and Åmdals Verk. There are no documented public facilities — no car parks, no toilets, and no marked trails leading directly to the shore. The surrounding landscape is working forest and bogland, so appropriate footwear and navigation aids are advisable.↗
The best time to visit is summer (June–September), when the highland terrain is snow-free and the water levels are stable. Winter access is limited by deep snow and the absence of maintained roads at this elevation.
What makes it special
A 3.2 km² lake at nearly 750 m elevation in the Telemark highlands↗
Part of the Arendal watercourse, one of Norway's major river systems↗
Regulated since 1972 for hydropower — dammed but not flooded↗
One of 377 named lakes in Fyresdal municipality↗
One of Norway's quietest, least-commercialised wilderness areas↗
A little planning goes a long way
About this guide
Compiled with AI assistance from the sources below; this is not a first-hand visit. Place details collected October 5, 2026. Hours, access and ratings can change; confirm with the venue before visiting.
