Orsa, Sweden Orsa, Sweden Orsa is a locality and the seat of Orsa Municipality, Dalarna County, Sweden, with 5,308 inhabitants (2010). It is located in the northern part of lake Siljan, about north of the town Mora. Inlandsbanan and European route E45 run through the town and the railroad Bollnäs-Orsa connects. The southern parts of Orsa are characterized by the Siljan Ring, the ring of lakes and rivers in northern Dalarna formed by the big meteorite strike 365 million years ago. In central Orsa, at the ouflow of river Oreälven a sand bank has been built up, in these days enjoyed by
Siljan, Norway Siljan, Norway Siljan is a municipality in Telemark county, Norway. It is part of the traditional region of Grenland. The administrative centre of the municipality is the village of Siljan. The parish of "Slemdal" was established as a municipality on 1 January 1838 (see formannskapsdistrikt). The name was later changed to Siljan. The municipality is located northeast of Skien and borders Buskerud county in the north and Vestfold county in the east. There is a forest district on both sides of Skiensvassdraget (Skien river). The older main road to Skien, Larvik, and Oslo, passes through Siljan. The municipality (originally the