Juan Carlos Munoz / View from the caldera rim of the Chico Volcano, Sierra Negra, Isabela Island, Galapagos, January 2009
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Pete Oxford / Sulphur fulmerole in crater of active volcano, Sierra Negra, Isabela Is, Galapagos
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John Abbott / Panorama of Sierra Negra Volcano, Isabela Island, Galapagos, August 2010
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Juan Carlos Munoz / Hikers admire the view from the caldera rim of the Chico Volcano, Sierra Negra, Isabela Island, Galapagos, January 2009
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Juan Carlos Munoz / Hikers admire the view from the caldera rim of the Chico Volcano, Sierra Negra, Isabela Island, Galapagos, January 2009
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Juan Carlos Munoz / Tourists riding horses to the caldera rim of the Chico Volcano, Sierra Negra, Isabela Island, Galapagos, January 2009
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Pete Oxford / Sulphur fumeroles inside crater of Sierra Negra volcano Isabela Is, Galapagos
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Pete Oxford / View from rim of cone of active volcano, Sierra Negra, Isabela Is, Galapagos
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Pete Oxford / Rocks on rim of cone of active volcano, Sierra Negra, Isabela Is, Galapagos.
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Pete Oxford / Sulphur crystals from crater of active volcano, Sierra Negra, Isabela Is, Galapagos
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Tui De Roy / Volcanic eruption, lava flow and fountain from circumferential fissure, Volcan Chico, Sierra Negra, Isabella Island, Galapagos Islands, Ecuador
