Dallol

The colorful hydrothermal pools and terraces of Dallol, Ethiopia. Note how the colors of the site change from white and light green to yellow, orange and red, due to the variable oxidation of inorganic iron. Dallol is a unique, terrestrial hydrothermal system around a cinder cone volcano in the Danakil Depression, northeast of the Erta Ale Range in Ethiopia. It is known for its unearthly colors and mineral patterns, and the very acidic fluids, commonly noted as some of the most acidic on Earth, that discharge from its hydrothermal springs.

Etymology