The stubby peninsula of Tjornes in North Iceland is one of the best-known geological locations of the country.
Layers of fossil shells and lignite can be found on the coastal cliffs down from Ytri-Tunga farm on the western side of Tjornes. Colonies of puffins and other sea birds nest on the cliffs along the eastern coast.
Photo from Wikimedia, Creative Commons, by Honza and Ivana Ebr. No edits made.