Wolf Island was born from an extinct volcano that reaches a maximum of 253 metres above sea level.  The volcanic history of the island is somewhat complex, with at least two major eruptive phases.  The southern area of the island was formed from flat basalt layers built up over the course of two eruptive phases, the second phase of which formed a caldera which has since eroded.  Like its neighbour Darwin, Wolf too lies upstream of the magma plume that forms the main Galapagos Island group.

Wolf's most recent eruptions are estimated to have occurred between 900,000 and 1,600,000 years ago. This makes it the second youngest islands in the Galapagos, with Darwin being the youngest.

The Beagle - Mary Anne - Cachalote - Sagitta - Amazonia - Samba - Beluga - Galaxy - Princess Grace - Aida Maria - Eden - Evolution - Eclipse - Grand Odyssey - Journey I - Eric - Flamingo - Letty - Odyssey - Athala - Nemo I - Nemo II - Diamante - Alta - Lammer Law - Rachel - La Pinta  - Humboldt Explorer - Parranda - Isabela (Albemarie) - Santa Cruz (Indefatigable) - San Cristobal (Chatham) - Baltra (South Seymour) - North Seymour (Seymour Norte) - Fernandina (Narborough) - Española (Hood) - Genovesa (Tower) - Bartolomé (Bartolemew) - Santiago (San Salvador or James) - Santa María (Floreana or Charles) - Marchena (Blindoe) - Mosquera - Plaza Sur (South Plaza) - Pinta (Abingdon) - Pinzón (Duncan) - Santa Fé (Barrington) - Rabida (Jervis) - Daphne

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