Bjoreidalen is one of the classic bird localities on Hardangervidda. It is especially known for its wading birds, with as many as 17 of the 19 wader species that nest in Hordaland.
At Halnefjorden, a few hundred metres east of Halne mountain lodge, lie the remains of two stone sheds – Halnelægeret. Some generations ago the cattle drovers stopped here in the summer; they were the cowboys of their time. But Halnelægeret already had a long history before the cattle drovers came.
Few other animal species on Hardangervidda have been as much the focus of scientific research as the spotted trout. The spotted trout is considered to be a genetic variant of brown trout. It lives in parts of the Krækkjav water system. Otherwise, on a world scale, this species is only found in a small area in Kaukasus, and possibly also in a lake in Rondane.
The Ruff lek on Langvassmyrane is the only known phenomenon of its kind on Hardangervidda. Every year it attracts hens from the whole plateau. The marsh is also the richest wetland in the county. This green oasis is located in a rocky moraine landscape a few hours walking distance south of Dyranut.
On the 10th of August, 1937, over half of the agricultural land in Simadalen was submerged by the river. The damage to roads and houses was also catastrophic. This was the most destructive flood ever recorded in Hordaland.
Frøyset river network is protected from power station-building - not because of its pristine nature - but because it is a typical river network for this part of western Norway.
On a large gravel terrace in Matredalen (the Matre valley), a couple of kilometres from the coastal settlement Matre, lies Storseterhilleren, at the end of a large stone block that came rushing down from the mountain. The Matre river runs just over 100 metres to the east of the cave.
The sea birds discovered it long ago. Raunøya and the surrounding islands are the most beautiful places in Masfjorden.