On the road south to Old Faithful.
Sheepeater Cliff. Columnar basalt which has broken off and tumbled down in ancient times.
Water bubbling from the earth. The magma (said with appropriate accent) is about 3-5 miles deep in Yelllowstone, and even shallower in places.
Gibbon Falls
We got lucky and this geyser erupted when we were driving around it.
Friday, August 10, 2007
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