'(<a href="http://www.j-archive.com/media/2004-10-19_J_28.jpg" target="_blank">Sofia of the Clue Crew reads from Yellowstone National Park.</a>)  Yellowstone has hot springs because this layer of the earth is extra thin here, so molten rock isn't far down'
the crust
YELLOWSTONE NATIONAL PARK: Yellowstone has hot springs because this layer of the earth is extra thin here, so molten rock isnt far down
Yellowstone has hot springs because this layer of the earth is extra thin here, so molten rock isn't far down
Yellowstone has hot springs because this layer of the earth is extra thin here, so molten rock isn't far down
YELLOWSTONE NATIONAL PARK
the crust
YELLOWSTONE NATIONAL PARK