DID YOU KNOW THE FOLLOWING ABOUT THE LONG VALLEY CALDERA...

... that in one small area of California, you can observe signs of the dynamic processes that shape our planet: earthquakes, volcanoes, glaciers, and deserts? More...

... that the state of California is being torn apart by movements of Earth's crust? More...

... that the eastern Sierra Nevada is the site of one of the largest volcanic eruptions in the history of our continent, spreading ash all the way from California to the Mississippi River? More...

... that thousands of people every year ski on an active volcano, and that toxic gases generated by this volcano are seeping out of the ground ... in lethal doses? More...

... that the EarthScope project will use state-of-the-art Earth-monitoring technology to help understand what triggers volcanic eruptions and earthquakes in the Long Valley Region? More...

... that you can explore this dynamic area of our continent using the EarthScope Voyager map tool? More...

This website provides information on the remarkable geologic history of the Long Valley Caldera, the site of one of the most dramatic geologic cataclysms in the history of our continent.