Approximately 150 million years ago, California separated from North America with the movement of these tectonic plates and became an island that drifted in what was a warmer Pacific Ocean filled with tropical creatures from sharks to fish such as tuna, sailfish, billfish, and even squid of enormous proportions weighing some three to five tons and were about fifty feet long. During those days, most of Northern California and what are the Western states was under saltwater. California eventually merged 80 million years later but remained under water. Eventually over millions of years of earth shifting with volcanic mountain creation the islands off the Western part of North America emerged into what is California's present day location and land formation we drive through today..