For 25 million years, volcanos spewed molten rock and ash across New Mexico, forming craters, super volcanos, cinder cones, lava flows, and peak-less mountains. Over time, these massive eruptions also planted the seeds of civilization and shaped the identity of New Mexico and its people, particularly American Indians. Sleeping Monsters, Sacred Fired: Volcanoes of New Mexico captures stunning examples of volcanos across the southwestern state. Volcanologists and geologists elucidate the mysteries of these geological marvels and consider when the next "sleeping monster" will awaken.

Wednesday, 7/30/08 from 5-5:30 a.m. ET