 as Old Faithful is now underway here at the Yellowstone National Park, one of the oldest parks in the country. There are over 5,000 people here watching Old Faithful. And basically, the way this works is that it's like a boiling hot teapot with a constriction down underground. And as the pressure builds up to a point about once every hour and 10 minutes, it erupts. And that's what's happening right now. As Old Faithful erupts into the air,