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:
Gotzone Mora Gotzone Mora Gotzone Mora (b. Bilbao in 1948) is a Spanish social-democratic politician. She was a member of the Basque Socialist Party (""Euskadiko Alderdi Sozialista – Euskadiko Ezkerra" / "Partido Socialista de Euskadi – Euskadiko Ezkerra""/ PSE-EE) till March 2008 when she was expelled from it for advocating support for the People's Party. Since 2008 she has been a member of the People's Party (""Partido Popular"" / PP). Of humble origins, she has become knowledgeable on human migration and global social processes. She has been a sociology reader in the University of the Basque Country in Spain. She was an