At West Thumb- the heat source of the thermal features in this location is thought to be relatively close to the surface, only 10,000 feet (3,000 m) down!Of course we had some fun here as well!
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At West Thumb- the heat source of the thermal features in this location is thought to be relatively close to the surface, only 10,000 feet (3,000 m) down!Of course we had some fun here as well!