Most tourists who visit Yellowstone National Park snap photos of Old Faithful and stroll past bubbling mud pots, never realizing they're walking on top of one of Earth's most powerful geological ...

Yellowstone's volcanic past reveals a dynamic system of repeated caldera-forming eruptions and smaller lava flows, with magma ...

U of U geology professor Robert B. Smith has made a 50-year career out of studying Yellowstone. He presents a lecture on the Yellowstone Supervolcano Wednesday, March 18, at 7:30 p.m. at the Skaggs ...