They shoot molten lava and toxic gases miles into the atmosphere and when the lava is too thick to run over the top, it can create what geologists like Dr. Pat Abbott call a plug dome volcano.

They shoot molten lava and toxic gases miles into the atmosphere and when the lava is too thick to run over the top, it can create what geologists like Dr. Pat Abbott call a plug dome volcano.

The park is home to more than 40 volcanoes, bubbling mudpots, steaming fumaroles, stunning mountain views and vast, naturally dark skies. The park's namesake peak is the one of the largest plug dome ...