California's Major Geologic Features

Major volcanoes in California include Mt. Shasta and Mt. Lassen. There also is a Mt. Saint Helens in Washington state. These volcanoes are there because California is part of the Ring of Fire. The Ring of Fire is the Pacific Plate and other major plates. Its constant movement causes many earthquakes and volcanoes. Major mountains such as the Sierra Nevada mountains and the Cascade Range exist also. Within the Cascade Range, there are many volcanoes. Mt. Saint Helens, as mentioned earlier, is one of them. It erupted violently recently. To view volcanic eruptions and mountains forming, see the video bar.

Above is Mt. Shasta, California.