" our best evidence is that the crustal magma chamber is filling with molten rock . but we have no ideas that long this motion gone on before there actually is an eruption or the inflow of lava rock again and the caldera deflates again , " began smith . volcanic activity in yellowstone warm up air liquid which create geysers of steam water , and is accounting for the creation and repeated eruption of old faithful .
There is a volcano in Yellowstone.