The island’s geology is as diverse as its wildlife. The highest peak on the island, Frary Peak, is over 6500 feet above sea level and offers spectacular views of the Great Salt Lake from a bird’s eye view. Most of the island is composed of layers of sedimentary rock that date back to the late Cretaceous period and contain fossils of extinct animals. The rugged shoreline is made up of a mixture of sand, clay, and volcanic rocks that have been smoothed by the waves over thousands of years.
Antelope Island is home to over 300 species of birds and animals. Some of the more notable species include bison, mountain lions, mule deer, elk, coyotes, badgers, and numerous other mammals. In addition to these larger animals, visitors can also find a variety of reptiles such as rattlesnakes and lizards. The island is also a great place for bird watching, with bald eagles and peregrine falcons nesting in the cliffs near the shoreline.