Española is the southernmost of the Galapagos Islands and is also one of the oldest. Geologists estimate it is about four million years old. Española is a classic shield volcano, created from a single caldera in the centre of the island. Over thousands of years, the island slowly moved away from the Galapagos hot spot where it was formed and the volcano became extinct. Erosion began to occur, eventually resulting in one of the flattest islands in the archipelago with one of the lowest elevations.
