In Photos: Super Volcano Super Volcano whether Yellowstone could turn in to a super volcano. of 9 Colourful Aerial Explosions Yellowstone Sign Yellowstone National Park exit sign. Super Volcano Pyroclastic Flow An artists impression of a truck racing away from a pyroclastic flow. New Volcano Prediction Caldera Rim Ground splitting open around caldera rim, triggering another eruption. Pyroclastic Flow An artists impression of a truck and a helicopter racing away from a pyroclastic flow. Slideshow Pause Show Images Hide Images Tweet