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![At lake Gaupåsvatnet.](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/190/nvh_334_gaupas_koronitt_150.jpg?itok=Wq7ffNPu)
![Old pine forest (Bjørn Moe)](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/berg_31_0.jpg?itok=MQkkp4J8)
![Rope making](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/1/kvh-260-verftet.jpg?itok=ViAYY7jN)
Sandviken
Close to the tunnel opening at Amalie Skrams vei in Ssandviken, there is a cultural monument of European dimensions; a rope making works that produced rope and fishing tackle for West and North Norway.
![Part of the Yddal nature preserve seen from the air.](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/fusa_17.jpg?itok=zg9HUkfS)
Yddal
Yddal is one of the biggest and finest pine forest areas in the county. The rich forest resources provided an important foundation for the settlement of Yddal. Up until about the 1950s, there were three farms here. Where the lumberjacks couldn't get to, the trees grew very big and can be over 300 years old.
![Amateur geologist Torgeir Garmo at work taking out crystals from the rock.](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/fjell_15.jpg?itok=mVKJxkJZ)
Ågotnes- crystals
Road cuts and blast areas are a joy to rock collectors, even if the disturbance to nature is ever so disfiguring. These are the best kinds of places to hunt for crystals, which otherwise are removed by weather and wind. In the Ågotnes area there are especially many beautiful crystals to be found.
![Slåttene](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/sam_14.jpg?itok=TPx2vADn)
![The mill in Kvernapollen](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/kvh_287-3.jpg?itok=bugwrxNl)
Kvernapollen
When the workers came to Kollsnes to start on the work with the landing for the gas terminal from the Troll field in the North Sea, they found the ruins of an old farm mill at Kvernapollen.
![Lyse Monastery, reconstruction](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/1/kvh-239_lysekloster.jpg?itok=bc_kHrFJ)
![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.