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Varaldsøy- mining
There is still a lot of ore in the abandoned mines on Varaldsøy Island. If today's prices and availability of ore continue, it is doubtful whether the mines will resume operation. But, the pyrite is there, if the market should return. On Varaldsøy Island one finds at least nine mines and prospect pits, that for the most part date back to the latter part of the 1800s.
Sysendalen
If you are lucky you can find 9000-year-old pine stumps on Hardangervidda. Since that time, the tree line has continuously declined. But now, it is on its way back up again.
Frøland
Much rain, a steep drop and nearness to Bergen meant that the power-making potential of the Samnanger water system was exploited early. Samnanger was thus one of the first power-producing municipalities in western Norway. With its subsequent expansion and new power stations, about 400 gigawatts of electricity per hour were produced on average each year. This is enough to meet the energy needs of 25,000 households.
Eksingedalen- hydropower development
Water discharge at the outlet of the Ekso into Eidsfjord was halved after the big hydropower development in the mountainous area between Modalen and Eksingedalen and further southward toward Evanger in the 1960s, 70s and 80s. In an attempt to amend the changed environmental conditions in the waterway the developer built 35 small dams in the river.
Litlabø
The first finds of pyrite at Litlabø in Stord came to light in 1864. Forty years later sulphuric ore was mined from an open mine. From 1874 to 1880 it was used for dynamite production. That came to a sudden end when the factory exploded and three people died.
