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Ølve- Mining
All in all there are ten known copper mines and two iron mines on the Ølve peninsula. Geologically, the nine mines on Varaldsøy Island also should be figured in. The industry began at Lilledal in 1642 wth the mining of iron ore. From Jernsmauget by Dyråsen, the iron ore was sent to the iron works in eastern Norway.
Årsand
Below a south facing, steep rock at Årsand, there is one of the strangest ancient relics in the whole of Hordaland. The jutting rock wall forms a shallow flagstone – Geithilderen. Parts of the rock wall are covered by a light lime crust and on the crust figures have been painted in golden and rusty red colours.
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.