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Herdla – glacial deposits
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.
Gåssand
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.
Søfteland
If you drive between Søfteland and Ulven on a clear spring morning, or an evening in late autumn, you are advised to be careful on the turns. The temperature on the road can fall to under 0 °C here long before other places in the municipality. On clear, still nights the earth's surface chills quite a bit. In exposed areas a layer of cold air develops very near the ground and the road surface can easily chill to below freezing.