Mt. St. Helens is a name that looms large in the mind of any geologist or the mind of anyone who was alive in the USA in 1980. The 1980 eruption of Mt. St. Helens was one of the greatest natural disasters ever to hit the United States of America. The sobering part of it is that it will happen again. This podcast examines the lead up to the 1980 eruption from the point of view of the geologists who met and dealt with the event.