Siljan (lake) in the center of the ring, distant from the ring sediments and from Gravberg-1. This well went to a depth of . The hole produced gases and oily magnetite sludge similar to those found in Gravberg-1. 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:
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