What Animals Live at Mount Saint Helens National Volcanic Monument
What Animals Live at Mount Saint Helens National Volcanic Monument Home > FAQs Frequently Asked Questions If yous take specific questions not addressed by this list, please contact us for more information. (FAQ vii) How were large mammals affected by the eruption? Several large mammals lived in the Mount St. Helens surface area before the 1980 eruption. These included large herds of majestic elk ( Cervus elaphus ), black-tailed deer ( Odocoileus hemionus columbianus ), mountain goat ( Oreamnos americanus ), American black behave ( Ursus americanus ), and cougar ( Puma concolor ). The eruption's devastating lateral blast and debris avalanche instantly killed all large animals, which could not outrun the flight rock