YELLOWSTONE NATIONAL PARK
'(<a href="http://www.j-archive.com/media/2004-10-19_J_26.jpg" target="_blank">Sofia of the Clue Crew reports from Yellowstone National Park.</a>)  Reliably, every half to 2 1/2 hours, this most famous of geysers fires out about 5,000 gallons of water'
Old Faithful