The mountains of western Norway are lovely to wander in. In Cambro-Silurian time it was the mountain itself that wandered. The mountain, or more correctly the bedrock, first moved eastward, then back a bit westward again. All this rocking back and forth in the mountains ended about 400 million years ago.
Eksingedalen alternates between wide, flat flood plains with good farmland, and narrow passages with waterfalls where the roads cling to the mountainsides. The alternations in the landscape are a result of the sculpturing work by glaciers over several ice ages, and the deposition of the glacial river deposits when the last glacier finally melted back.
Siggjo is a cone-shaped, volcano-like mountaintop in the part of Hordaland where one finds the best preserved volcanic rocks. The rock types originate from one or several volcanoes that spewed out glowing lava and ash. But, the shape of the mountain, as it appears today, formed later and by completely different forces.