This geonarrative created for the IAVCEI Scientific Assembly 2017 highlights six world-class volcanoes located in the western United States: Yellowstone, Three Sisters, Crater Lake, Medicine Lake, Lassen Peak, and Mammoth Mountain. Each volcano has been studied extensively, and the resulting geologic maps are the products of years of field mapping and laboratory analyses. The results of these studies are more than just maps—each is a synthesis showing a volcanic field’s eruptive history and the volcano’s behavior over its lifetime. These studies form the foundation for future assessments of volcanic or other geologic activity.Yellowstone Caldera and Plateau Rhyolite web map:U.S. Geological Survey, 2017, Yellowstone Caldera and Plateau Rhyolite: U.S. Geological Survey AGOL web map, accessed August 21, 2017, at http://arcg.is/1fqHyC.Three Sisters Lava Flows web scene:U.S. Geological Survey, 2017, Volcanic Landscapes geonarrative web scene: U.S. Geological Survey AGOL web scene, accessed August 21, 2017, at http://arcg.is/1ea04u.Crater Lake Lidar and Recent Lava Flows web scene:U.S. Geological Survey, 2017, Crater Lake Lidar and Recent Lava Flows: U.S. Geological Survey AGOL web scene, accessed August 21, 2017, at http://arcg.is/11Guje.Medicine Lake Caldera and Recent Lava Flows web scene:U.S. Geological Survey, 2017, Volcanic Landscapes geonarrative web scene: U.S. Geological Survey AGOL web scene, accessed August 21, 2017, at http://arcg.is/1ea04u.Lassen Peak 1915 Debris Flow web scene:U.S. Geological Survey, 2017, Volcanic Landscapes geonarrative web scene: U.S. Geological Survey AGOL web scene, accessed August 21, 2017, at http://arcg.is/1ea04u.Mammoth Mountain Flows, Long Valley Caldera, and Bishop Tuff web map:U.S. Geological Survey, 2017, Mammoth Mountain Flows, Long Valley Caldera, and Bishop Tuff: U.S. Geological Survey AGOL web map, accessed August 21, 2017, at http://arcg.is/1bbK0T.
