Toward the end of the spring semester, a group of 16 people from the University of California, Berkeley
went on a field trip to the Pacific Northwest. We went to view the evidence for three catastrophic events that happened in the past. They were: the Lake Missoula Floods, the Columbia River Basalts, and the 1980 Mount St. Helens eruption. Professor Walter Alvarez led the trip. Many of us came from the Earth and Planetary Science
department, but Geography
were also represented. The pictures below go in chronological order. The brief captions will be lengthened when I can find the time.