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
Gustav I of Sweden Norway. While he made his way from Mora via Lima to Norway, people that had recently turned down Gustav's call for support against the king changed their minds. Representatives of that group caught up with Gustav before he had reached Norway and convinced him to follow them back to Mora. Gustav Eriksson's run towards Norway and back has formed the background to the famous cross-country ski race Vasaloppet. Gustav Eriksson was appointed "hövitsman". The rebel force he led grew. In February 1520 it consisted of 400 men, mainly from the area around Lake Siljan. The first big clash in the