Stuðlagil (in Icelandic pronounced as /ˈstʏðlaˌcɪːl̥/; also transliterated as Studlagil) is a ravine in in Icelandic pronounced as /ˈjœːkʏlˌtaːlʏr̥/ in the municipality of Múlaþing, in the Eastern Region of Iceland. It is known for its columnar basalt rock formations and the blue-green water that runs through it. It became an unexpected tourist sensation[1] [2] after being shown in a WOW air brochure in 2017.[3] The rock formation is 30m (100feet) tall.[4]
The river Jökla runs through the ravine. The water level decreased by 7mto8mm (23feetto26feetm) after the opening of the Kárahnjúkar Hydropower Plant in 2009.