Stuðlagil, Basalt column canyon in Múlaþing, Iceland.
Stuðlagil is a canyon featuring walls composed of hexagonal basalt columns that rise along both sides of the Jökla river. Glacial water flows through in shades of turquoise, creating a striking contrast with the dark rock formations.
The canyon lay hidden until 2009, when the Kárahnjúkar Hydropower Plant operations lowered water levels in the area. This exposure revealed the basalt column formations that had been submerged beneath the river for centuries.
Local farmers maintained sheep grazing traditions in Jökuldalur Valley for generations, adapting their practices around the changing river conditions.
To reach the east bank viewpoint, follow the hiking trail starting near Klaustursel farm, which takes approximately two hours to complete. Be aware that the terrain is uneven and there are no railings or rest areas along the path.
The water shifts in color with the seasons, displaying bright turquoise in spring before transitioning to grayer tones in summer months. This transformation results from varying amounts of glacial sediment carried by the melt water throughout the year.
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