Sogin
A depression in a hyaloclastite ridge.
The area is colourful due to intese high temperature alternation and a few mud pools and solfataras.
Location: During summertime it is possible to drive on road Vígdísarvellir (428) on well-equipped cars but it is closed during winter. On winter it is possible to walk from road Krýsuvíkurvegur (42).