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.
Moster is mentioned as a church site already in the time of Olav Tryggvason. According to the sagas the king is supposed to have laid the foundations for the first church at Moster when he came there in 995. That building would have been a stave church - the church standing there today – a stone church with a nave and narrower, straight chancel – was probably founded around 1100. In 1874 a new church was built at Moster. Then the old church was bought by The Society for the Preservation of Norwegian Ancient Monuments, which is still the owner.
The old stone church at Eidfjord has an open position on the terrace at Lægreid. In a diploma from 1310 it transpires that Torgeir on Sponheim donated a gift for the erection of the church in Eidfjord. Thus we can assume that the church was under construction at the time. The elements in the style confirm such a dating.