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![Stone quarry in Kollevågen, 1922](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/askoy_21.jpg?itok=Xnws-T7D)
![Sandy beach to the west of Kallsøyna, outermost Valen](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/190/nvh_353_herdla_150.jpg?itok=XcEOtEry)
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.
![The smallholding Træet, Askøy](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/kvh_269-4.jpg?itok=3Eer2fPn)
![Botnavatnet](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/fi_20.jpg?itok=q4QcNNrR)
![Whitefish](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/fi_3.jpg?itok=BdQyPUBu)
![Today there are only a few farmers that grow potatoes in Fitjar.](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/fi_22.jpg?itok=avXiCbey)
Fitjar- potatoes
The deep agricultural soils in Fitjar are found especially in the area between Lake Storavatnet and Breivika. The many stonewalls in the area reflect that the earth probably was full of stones and stone blocks. The stones that couldn't be dug out had also a function: they stored heat that helped to grow potatoes.
![The monks leave their mark at Lysekloster](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/os_24.jpg?itok=Q5bQc7i9)
Lysekloster- The monks and nature
Lysekloster was the largest agricultural property in the country when it was phased out during the Reformation in 1537. In its prime this cloister encompassed two-thirds of all the farms in Os. The monks introduced and cultivated new plant species and it was probably they who stocked the waters with fish not indigenous to the area. This legacy from the Middle Ages has left a lasting mark.
![Hetlefloten i Os](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/723.jpg?itok=iwhgEn9w)
![From](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/190/nvh_312_vaksinen_ulven_150.jpg?itok=P4DdHVu-)