Located on the island of Heimaey (Icelandic pronunciation: [ˈheiːmaˌeiː]), literally Home Island, in Iceland, the mountainous shape appears to be formed mostly from basalt rock that has the uncanny appearance of wrinkled elephant skin.
“Roca del elefante, Heimaey, Islas Vestman, Suðurland, Islandia, 2014-08-17, DD 036” by Diego Delso. Licensed under CC BY-SA 4.0 via Wikimedia Commons