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, Sweden As of 2015, the mildest January was in 1989 and the coldest during the record-breaking deep freeze of 1987, just two years earlier. As the rest of the municipalities around Lake Siljan, also in Mora, the summer solstice celebration of Midsummer plays an important role in the cultural life. People dress up in traditional folk costumes, raise maypoles, play traditional music and dance around the maypole. The house where Swedish painter Anders Zorn lived in, together with his wife Emma, is located next to the Mora Church and is open to the public. A museum containing many of his works