
[2013-western-us]
Old Faithful


We had impeccable timing for Old Faithful. As we were nearing the visitor’s center we noticed the large crowd and discovered that the eruptions was “imminent.” While we waited for a few minutes the kids worked on their junior ranger activities. While parking in the visitor’s center parking lot we spotted a raven attempting to break into a motorcyclist’s bag. The ranger program the other night on birds warned that the super smart ravens were frequently seen breaking into motorcyclist’s packs in parking lots. In fact, one raven managed to open a pack, open the Ziploc bag to a sandwich and even took the onions out of the sandwich before flying away with his feast. 213 of the Earth’s geysers are in Yellowstone. Yellowstone is actually a gigantic volcano that collapsed into a caldera. (Does this theme sound familiar? Crater Lake, Newberry Volcano…) The caldera of Yellowstone is forty miles wide and formed 640,000 years ago when a violent eruption emptied the volcano’s magma chamber. Yellowstone is sitting atop an active hotspot. Magma sits 3-5 miles below Yellowstone warming the water in the geothermal features potentially up to seven hundred degrees before the water comes to the surface. Norris is the hottest water feature in Yellowstone at 190 degrees on the surface. Even more than being hot, some pools of water in Yellowstone contain acid. The sulfur caldron is so acidic it can dissolve flesh. It is estimated that Old Faithful empties 4-8,000 gallons of water each time it erupts.
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