Skógafoss (pronounced [ˈskou.aˌfɔs]) is a waterfall situated on the Skógá River in the south of Iceland at the cliffs of the former coastline. After the coastline had receded seaward (it is now at a distance of about 5 kilometres (3.1 miles) from Skógar), the former sea cliffs remained, parallel to the coast over hundreds of kilometres, creating together with some mountains a clear border between the coastal lowlands and the Highlands of Iceland.

https://en.wikipedia.org/wiki/Skógafoss

photo: Zeiss Batis 18mm
original size 25000x12500
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