Travel writers describe the rock as one of the most spectacular views in the Islands.[1][4][5][6][7] A colony of penguins makes its home at the foot of the rock.[8] Tourists dive in scenic reefs offshore of the rock.
References
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Annie Fitzsimmons (2014-12-10). "What They Don't Tell You About the Galápagos". National Geographic. Archived from the original on November 30, 2020. Retrieved 2020-04-19. One morning, we woke up at 5:30 a.m. for a hike on Bartolomé Island, where we climbed 326 steps to take in one of the most iconic formations in the Galápagos—Pinnacle Rock.
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Paul Tasch (Autumn 1978). "Galapagos Islands: Geological Field Notes: New Data". Transactions of the Kansas Academy of Science. 81 (3): 231–241. doi:10.2307/3627258. JSTOR3627258. At the northern end of Sullivan Bay, Pinnacle Rock rises to a sharp pointed prominence (Fig 12). This was originally a part of the volcanic mass that now occurs behind it on the island. If subsequently marine erosion separated it from the island it would be a stack. After that volcanic boulders and a sand beach appear to have connected it once again to the mainland, to which it is very close. If so it would be a tombolo. The other scenario would place it, as a proto-stack if never completely severed from the island at its base (now covered by boulders and sand).
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Tom McNamara (2020-01-18). "Galapagos Evolved: Land-based Pikaia Lodge embraces green living". Vancouver Sun. Pinnacle Rock, Galapagos. Retrieved 2020-04-19. The shoreline reef around Pinnacle Rock on Bartolome Island is just one site that is teeming with shy reef sharks, giant parrotfish, schools of sardines, and many other fish species.
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Henry Nicholls (2014). "The Galapagos: A Natural History". Basic Books. ISBN9780465035953. Retrieved 2020-04-19. There are few better than those glimpsed from the top of Bartolome, a spot that looks out on one of the most famous and photographed panoramas in the Galapagos. Gazing east, there the pockmarked remains of several splatter cones. To the west, there are remains of an eroded tuff cone known as Pinnacle Rock.
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Christopher Minster (2011). Paula Newton (ed.). Viva Travel Guides Galapagos. Viva Publishing Network. ISBN9780982558515. Retrieved 2020-04-19. On one side of Bartolome is the famous Pinnacle Rock, a rocky formation pointing skyward. Legend has it that Pinnacle Rock was bombed into shape in the 1940s by American servicemen testing their ordinance.