Some mountains have rounded shapes, while others have steep slopes and sharp edges. Ulvanosa (1246 mos.) has both. The forms reflect the type of bedrock below, and the forces that were in effect when they were formed.
"With its strange situation (surrounded by high mountains), this city has the advantage of a beautiful port and considerable shipping, but also the disadvantage that once on land one cannot get to the city without great inconvenience. This is because the weather in the vicinity of these high mountains is extremely unpleasant and rainy. There has even evolved an expression that is always rains in Bergen, and we have not experienced anything to counteract this saying." (a quote by the Dutch professor Fabricius after a visit to Bergen in ca. 1780).
Few other places in Hordaland, or even the whole country, get as much rain as in the Samnanger mountains. The mountains here simply attract wetness. The weather station on Kvitingen has continuous measurements all the way back to 1900, and the measurements have documented several records for the county. The station is therefore much used as a reference for the rainfall in western Norway.
The oceanic crust of the North Sea was subjected to a lot of stretching both in Permian and Triassic times, and later in the Jurassic. This stretching resulted in the North Sea collapsing in and also to large faults forming west of Hordaland and on the mainland. Austefjorden in Sund follows one of these faults.
Mangerite is a rock type that was first made famous in a treatise by the Bergen geologist Carl Fredrik Kolderup in 1903. The rock type got its name from the place where it was found, and has made the Mangerud name well known around the world, at least among geologists.
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.
In 1868 the first stone workers came to Rubbestadneset to take out the granite for the Skoltegrunns Pier, predecessor of the Skoltegrunns wharf in Bergen. Later granite was also taken out from the area, around Innværs Fjord and UransvågenN. The activity probably peaked around 1900, with over 40 men at work. 15 years later, it was finished.
If we study the group of islands south of Selbjørns Fjord from the air or on a sea map, we will notice that many of the islands are elongated and lie systematically in rows. The islands are divided by long sounds, for example Trollosen, Nuleia and Hjelmosen, which are oriented in a south-southeast to north-northwesterly direction.