Mora, Sweden their homes. Most went to Stockholm and southern Sweden where they learnt new craftman skills. Returning to Mora they used their new knowledge to build up new industries. During the end of the 18th century and the 19th, cottage industries of clocks, sewing machines, knives and water taps were important to the economy. Water taps and knives are still thriving industries. Mora is located between the northern shore of lake Siljan and the southern shore of lake Orsasjön where the Österdal River enters Siljan. Mora lies on the west side of Europe's largest meteor impact crater (Siljansringen). The northern part
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