A huge volcano erupted violently about 760,000 years ago on the eastern side of the Sierra Nevada, forming a large depression called the Long Valley Caldera. This “super-eruption” was estimated to be more than 2,000 times larger than the 1980 eruption of Mt St Helens...Today, the Mammoth Lakes resort area is on the western edge of the ancient caldera.
A birds-eye view of view the landscape as it unfolds is unique. For this reason, many travelers, and especially geologists, try to sit in window seats on airline flights. Unfortunately, many of us are not planning to travel on airplanes anytime soon...but we can admire photos!