Ramnafjellet mountain is a popular hiking area and the climb to the summit gives a beautiful view over Bjerkreim municipality. The oldest house in Bjerkreim, Åsen, is found here. The name of the farm comes from the surrounding nature; Ås means “ridge-shaped hill”. The house has been modernized and is used to host events and tours in Bjerkreim. At Åsen you are in the lower part of Western Europe’s largest layered intrusion, that 920 million years ago was an enormous magma chamber full of red hot magma – more than 100 times hotter than boiling water. Ramnafjellet consists of a large inclusion of anorthosite inside this magma chamber. Since anorthosite is more resistant than the surrounding rocks it has created Ramnafjellet mountain.