Siljan (lake) Siljan (lake) Siljan, in Dalarna in central Sweden, is Sweden's sixth largest lake. The cumulative area of Siljan and the adjacent, smaller lakes Orsasjön and Insjön is . Siljan reaches a maximum depth of , and its surface is situated above sea level. The largest town on its shore is Mora. The lake is located around the southwestern perimeter of the Siljan Ring (Swedish: "Siljansringen"), a circular geological formation which was formed 377 million years ago in the Devonian by a major meteorite impact. The original crater, now mostly eroded, is estimated to have been about 52 km (32 mi)
Mora (canton) eastern border. The canton of Mora is subdivided into six districts ("distritos"): The canton of Pacaca was established by a decree of May 25, 1883. Three years later, the canton's name was changed to Mora in honor of Juan Rafael Mora Porras (1814-1860), the second President of Costa Rica. Mora (canton) Mora is the 7th canton in the province of San José in Costa Rica. The canton covers an area of 162.04 km², and has a population of 23,004. The capital city of the canton is Ciudad Colón. The Río Virilla establishes the northern boundary of the canton, with the