It began with a sound like distant thunder – but the skies were clear.
Suddenly the ground shook for miles around. A volcanic vent opened on the inside of the caldera’s rim and began sputtering lava and pumice, eventually giving way to the main lava flow. The lava slowly snaked its way downhill, igniting, then burying every tree in its path.
The only people around to witness this fiery spectacle were Native Americans, as it…