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
Mora–Siljan Airport canceled, since the Swedish Transport Administration, which procured the Arlanda–Sveg route, did not accept the line being combined with the Arlanda–Mora route. This has been processed in court and also appealed to the EU Commission, which gave the Swedish Transport Administration the right to have their agreements for themselves. Mora Municipality has chosen not to procure its own line because it would mean significantly higher costs. The train is considered a future means of transport, unless the government gives directions to the Swedish Transport Administration to procure the line. The Transport Administration only procured air routes where alternative transport (ground