Jan 13, 2008
A surprising place are the swirls, spirals, rosettes, honeycombs and
columns in the Hljóðaklettar ("echoing rocks") basalt formations,wich are unique in the world, almost breathtaking. It is so unbelivable that it is made by the nature itself.
The Vesturdalur parking area is surrounded by intriguing patterns, but the best formations are found along the river to the northeast of the parking area.
The name is derived from an acoustic effect created by some of the spiral formations, making it impossible to determine the directions of the noisy river. It's difficult to imagine what sort of volcanic activity produced Hljóðaklettar.
Polygonal basalt columns normally form in instantaneously cooled lava perpendicular to the direction of flow. Because they were formed in vertically oriented volcanic plugs, the Hljóðaklettar
columns lie horizontally this explanation not withstanding there are formations at Hljóðaklettar to which there seems to be rhyme or reason.
The formations are riddled with lava caves as well. The largest, Kirkjan ( "the church") is west of the river in a grassy pit, 15 minutes on foot from the parking area.
the river Jokulsa a fjollum flows near Hljodaklettar and you can see how powerful it is. you can also walk from Hljodaklettar to Dettifoss.
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