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 parish) is named after the old "Siljan" farm (Old Norse: "Seljur"), since the first church was built there. The name is (probably) the plural form of "selja" which means "sallow tree" or "willow". Prior to 1918, the name of the municipality was "Slemdal". The coat-of-arms is from modern times. They were granted in 1989. The arms show three white saw blades on a green background. It was chosen to represent the timber industry of the municipality. Siljan, Norway Siljan is a municipality in Telemark county, Norway. It is part of the traditional region of Grenland. The administrative centre of the