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This Concept Map, created with IHMC CmapTools, has information related to: Mount St. Helens, Post Explosion Led to lasting landscape change Spirit Lake in '82, Post Explosion Led to lasting landscape change Spirit Lake pre-eruption, Explosion!!! Led to... Lahars, Post Explosion Created a big mess Ash, Pre Explosion Were there? Ecosystems?, Explosion!!! Led to... Displaced plants, animals, people, Pre Explosion Were there? Domes, Post Explosion Created a big mess 3 years later, Post Explosion Created a big mess Ash Cloud, Explosion!!! Led to... Massive Erosion, Pre Explosion Were there? People?, Pre Explosion Were there? Scientist Warnings?