Yellowstone Trip - Day 4 - Yellowstone Park
September 4th 2008 Finally - a sunny day! We head towards Norris - another hydrothermically active area of the park. We see Steamboat geyser, which is just spurting a few feet right now. It's still pretty impressive. Norris is one of the most active earthquake areas of the park. Small earthquakes trigger changes each year in the hot springs and geysers. Many hot springs and fumeroles (steam jets) have temperat
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