| Ecuador and the Galápagos, July 23 - August 7, 2007 / 20070805z_IsabelaVolcanEcuador_CollapsedCaldera
Ruth Milner, rmilner plus web at bookofmarvels dot net 12/21/2007 |
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Collapsed Caldera, Isabela Toward the northern tip of Isabela is this huge caldera which has partially collapsed into the sea. |