Every 73 minutes an immense column of superheated water and steam blasts from deep benesth Earth's surface and showers over the exposed, barren soil of Yellowstone National PArk. THis is Old Faithful- the most famous geyser in the world. Not all geysers are so predictable, however.Geysers:When The Earth Roars taek you on a journey to the geyser fields in RUssia, Iceland, New Zealand, the United States, and deep beneath the ocean.
