Styggforsen

Styggforsen is a waterfall and a nature reserve located in Dalarna County, Sweden. It is part of the European Union-wide Natura 2000 network.

==Geography== The waterfall is located in the village of Boda, 20 kilometres north of Rättvik. It lies at the eastern edge of the Siljan Ring, a prehistoric impact crater formed 377 million years ago during the Devonian period. This crater was created when a bolide, estimated to be about 4 kilometres in diameter and traveling at around 100,000 kilometres per hour, struck the Earth's surface. The impact caused a significant vertical realignment of the horizontal rock strata and created a bedrock depression, resulting in many of the geological features present today, such as Lake Siljan to the southwest and Styggforsen itself.