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Lobby > Exhibits > Why Geysers Erupt > Underlying Geology > Clues to Look for

Clues to Look for

drawing of the magma chamber beneath the parkA shallow body of magma extends the length of the Yellowstone Caldera and has fueled massive volcanic eruptions in Yellowstone’s past. You cannot see this magma chamber from the surface of the Earth, but you can see evidence of its handiwork--if you know what to look for.

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drawing of the OFVEC
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This work is supported by

National Science Foundation    Yellowstone Park Foundation

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