Siljan Ring proved inconclusive. Drilling for natural gas was resumed in the late 2000s and continues as of mid-2012. The scientific premise for prospecting of this sort is based on the work of physicist Vladimir Kutcherov, who is cooperating with Igrene, the company financing the drilling operations. Siljan Ring The Siljan Ring () is a prehistoric impact crater in Dalarna, central Sweden. It is one of the 15 largest known impact craters on Earth and the largest in Europe, with a diameter of about . The impact that created the Siljan Ring occurred when a meteorite collided with the Earth's surface during
European Cross Country Championships European Cross Country Championships The European Cross Country Championships is an annual international cross country running competition. Organised by the European Athletic Association, it is the area championships for the region and is held in December each year. The championships was inaugurated in 1994 in Alnwick and the venue for the championships changes each year. Unlike the World Championships for the sport, the European Cross Country Championships consists of six races in age categories, with separate senior, under-23, and junior races for both men and women. There are individual and national team medals awarded in each race. In the team