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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)
![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.
![From Hamlagrøhornet one sees a division between the fertile phyllite and the naked Precambrian basement rock types in the landscape](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/232/voss_55.jpg?itok=WKuDCDHt)
Hamlagrø
The type of underlying rock can be decisive for how many different types of plants are found in an area. In the area around Hamlagrø-lake the diversity is especially obvious. The geological conditions change much here within a short distance.
![From the mountainous rocks just below Sandvikshytte cabin on Sandviksfjellet.](https://www.grind.no/sites/default/files/styles/medium/public/bilder/sted/304/sandviksfjellet_berg_42_0.png?itok=ojW0mG7e)
Sandviksfjellet
On Sandviksfjellet there are old boulders that have been made into mountains. The stones have been stretched out or squeezed together between huge slabs of rock, during slow, but powerfulprocesses of transport. This conglomerate shows, in quite a special way, the enormous powers that were active during the collision between Norway and Greenland over 400 million years ago.