In connection with the planned developments in the oil sector at Vindenes around 1980, excavations were carried out under the auspices of Bergen Historical Museum. Exceptionally interesting traces of an old farm at Høybøen then came to light. These were the remnants of a farm where there had been two houses containing several rooms.
The 28th November 1914 was a day to remember for the Os inhabitants. This was the day they could turn the switch on the wall and have electric light in their houses. It was like opening the door on the future when the power station at Gåssand was put into operation.
Where the school and the sports facility lie at Eidsbøen there was previously a bog surrounded by small hillocks. More than 1000 years ago this was a holy place, where the dead were buried.
Even though we know of several hundred burial places from the Stone Age in Hordaland, we do not often hit on the Stone Age Man himself. But there are a few.
On the east side of Lake Skjelbreidvatnet, clearly visible along the road from Eikelandsosen, we notice a farm on a terrace above a grassy hill. The hill has the form of a broad shield; Skjelbreid (" Broad Shield") is the name of the farm.
Bays that are shallow far out into the sea, with fine sand and clay, are rare in Hordaland. Where they are found, the reason is usually that the edge of the glacier made smaller advances or stopovers when it calved back at the end of the last Ice Age. This is what happened at Vinnesleira.
The shift in the landscape is striking between the barren craggy moors north on Askøy and the green fields of Herdla, which has the county's biggest farm. The majority of Herdla, such as the island appears today, is a gift from the glacier: The glacier that advanced here over 12,000 years ago stopped at the northern tip of Askøy and took its time building up the moraine on Herdla. Since then, Herdla has been under continual transformation. The re-organisation of the loose sediment deposits continues today.
The gneiss landscape west and north of Bergen viewed in profile can remind us of a saw blade of the kind that has long, slanted sides that get broken off shorter transverse sides. It has taken several hundred million years to file this saw blade, an enduring interplay between various geological processes.
Much rain, a steep drop and nearness to Bergen meant that the power-making potential of the Samnanger water system was exploited early. Samnanger was thus one of the first power-producing municipalities in western Norway. With its subsequent expansion and new power stations, about 400 gigawatts of electricity per hour were produced on average each year. This is enough to meet the energy needs of 25,000 households.