Urriðafoss is one of the major waterfalls in the river Þjórsá, the longest river in Iceland, approximately 230 km long. It is located in South Iceland between the towns of Selfoss and Hella by the ringroad number 1. Urriðafoss is one of the largest waterfalls in Iceland with a volume of about 360 cubic meters/sec , but has only a drop of a few metres. Landsvirkjun, the main Icelandic power company is planning to build a hydro dam above Urriðarfoss, about 125 MW in size, and by then Urriðarfoss will disappear.
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