Isla Sorna

Isla Sorna is an island 333 kilometers (207 miles) west of Costa Rica. Isla Sorna is the largest island of The Five Deaths island chain, located north east of Isla Tacaño and south of Isla Muerta, and the island has a surface of 637 kilometers (bigger than what most people believed) with mountain ridges which creates varied ecological niches.

After InGen bought Isla Sorna, they code-named the island "Site B". Isla Sorna became InGen's "factory floor", where dinosaurs and pterosaurs were cloned in the various facilities InGen built on the island. The dinosaurs and pterosaurs were nursed in temporary cages until they were fit to be transported to Jurassic Park on Isla Nublar, 87 miles east of Isla Sorna.

After Hurricane Clarissa hit the island, all personnel were evacuated from the island and the facilities were later abandoned. However, before they left, the InGen personnel unlocked the cages so that the dinosaurs and pterosaurs could have a better chance of surviving the storm. Within a few years, the dinosaurs and pterosaurs took over the island and established a fully functional ecosystem. However, with the introduction of numerous illegal species of dinosaurs in 1999, the island's ecosystem had minor disruptions, and the surviving animals were shipped to Jurassic World on Isla Nublar, but Isla Sorna's ecosystem fully recovered after the illegal dinosaurs became part of Isla Sorna's ecosystems, and Isla Sorna is once again a flourishing environment.