Exhibits > Why
Geysers Erupt > Underlying
Geology > Yellowstone's Hot
Yellowstone's Hot Water Taps
Most of Yellowstone’s geyser basins are located within the
Yellowstone Caldera, overlying a body of partially molten rock.
The park’s famous hydrothermal features would not exist without
the tremendous heat generated by this shallow magma.
Next: Geyser Ingredients