Mora–Siljan Airport Mora–Siljan Airport Mora–Siljan Airport is located about 7 km or 3.3 NM southwest of Mora, Sweden. Its fixed-base operator (FBO), AB Dalaflyget, which also operates Dala Airport, consists of the municipalities of Mora, Falun, Borlänge and Dalarna County, in Central Sweden. "Dalaflyget" also provides air traffic control services. The 45 m wide runway and parking can accommodate Boeing 737-type airliners. Two flights operate to Arlanda on weekdays (three on Thursdays), and one on Sundays, in approximately 50 minutes. 2011 to 2015, Avies operated the line with a 19-seater Jetstream 32 turboprop aircraft. The airfield is also home to "Ovansiljans Flygklubb".
Siljan Ring by rocks of the Llandovery series (Lower Silurian). During the last ice age the area was covered by a thick icesheet. The bedrock was sculpted by the ice, with the softer Palaeozoic sedimentary rocks being preferentially eroded. These erosional hollows are now occupied by lakes Siljan, Orsa, Skattungen and Ore. In accordance with theories about abiogenic petroleum (that hydrocarbons can be formed without involving material from dead plants and animals), astrophysicist Thomas Gold suggested that there might be major deposits of oil and natural gas in the area. Drilling was carried out in the late 1980s and early 1990s but