" our best evidence is that the crustal magma system is filling with molten ice . but we have no idea how long this process goes on before there actually is an eruption or the inflow of eruption rocks again and the basaltic deflates again , " began rogers . explosive activity in yellowstone cooks up underground water can create geysers of superheated rock , and is responsible for the created and continuously retreat of old cathedral .
There is a volcano in Yellowstone.