Yellowstone National Park, Wyoming. Yellowstone sits on top of one of the largest active super volcanos in the world. The entire park is, in fact, a caldera. The volcano tends to have a major erruption every 600,000 – 900,000 years, with the last major erruption 640,000 years ago (Wikipedia). These little hot pots and geysers are evidence of the activity below the surface that is continuously ongoing, although, at a relatively small scale.
I offer it as my tongue-in-cheek response to the PhotoFriday May 25, 2007 Futuristic Challenge.
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