Why Is Coronado Considered An Island?
Why Is Coronado Considered An Island? Coronado was dry land continuous with San Diego. Then, especially between 14,000 to 7,000 years ago, the ice sheets burying much of North America, Scandinavia and Siberia largely melted causing sea level to rise and surround Coronado, turning it into an island. Why is Coronado Island called an island?