Inlandsvägen Siljan. The road then continues via Orsa through Härjedalen and Jämtland to Östersund at the Lake Storsjön. From then on the route goes through Lapland and its wilderness, via the towns Vilhelmina, Storuman, Arvidsjaur, Jokkmokk and Gällivare to its northern terminus in Karesuando at the Finnish border. Inlandsvägen is simultaneously the European route E45 in Sweden, between Gällivare and Svappavaara it is also the European route E10. The European route E45 and Riksväg 26 follows the same route for approximately between Johannisholm and Mora, the latter being the end of the road for Riksväg 26. Only the first few kilometers
Siljan Ring an annular outcrop of Lower Paleozoic sedimentary rocks within Proterozoic granites of the Dala series. In Dalarna, the basement rocks consist of granites dated as 1.6 billion years old, putting them at the boundary between the Paleoproterozoic and the Mesoproterozoic. They were emplaced shortly after the Svecokarelian orogeny. The oldest sedimentary rocks that outcrop in the Siljan area are of Ordovician age. The sequence is dominated by limestone formations with one prominent black shale, the Fjäcka Shale, which is bituminous and has generated petroleum, sourcing the oil found in limestone cavities in the same area. The Ordovician sequence is overlain