Volcanoes, Calderas, and Ashfall sites visited in the U.S. and Canada
| Ashfall Fossil Beds State Park, NE |
| City of Rocks National Reserve, ID |
| Crater Lake National Park, OR |
| Crater Lake National Park, OR |
| Craters of the Moon National Monument, ID |
| Haleakala National Park, Maui, HI |
| Hawaii Island Geology |
| Hawaii Volcanoes National Park, HI |
| John Day Fossil Beds National Monument, OR |
| John Day Fossil Beds National Monument, OR |
| Interstate Geology, WI |
| Lassen Volcanic National Park, CA |
| Mount St. Helens Volcanic National Monument, WA |
| Mt. Rainier National Park, WA |
| Mt. Rainier National Park, WA |
| Western Canadian Mountains |
| Yellowstone Hot Spot, ID |
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