Giant Geyser Erupts After Over Five Years

Some surprising news out of Yellowstone National Park: Giant Geyser, one of its most powerful, erupted early this morning (28th) around 5:03 a.m. MST. This is all the more amazing because Giant, reportedly the second tallest active geyser in the world behind Steamboat Geyser, has a remarkably spotty eruption record. Indeed, it has several different eruptions, according to the Geyser Observation and Study Association. Unlike Steamboat, however, Giant Geyser has been known to veer into periods of remarkable activity for much longer periods. For large swaths of 1997 and 1998, Giant Geyser erupted every three to four days, with some gaps. It had a comparable fit of activity between 2006 and 2007 Giant is the central geyser of the Giant Group, which includes Mastiff Geyser and Bijou Geyser...more