A) Pre-Meeting Field Trips

A1. Crater Lake and Newberry Volcano

A2. Exploring pyroclastic density current deposits from the 18 May 1980 eruption of Mount St. Helens, Washington (Completely Filled; now closed)

A3. Holocene age dike-fed silicic domes and flows in Oregon and California
(Completely Filled; now closed)

A4. Mammoth Mountain, Long Valley Caldera, and the Bishop Tuff
(Registration closes May 1)

A5. The lacustrine volcaniclastic deposits of the Ohanapecosh Formation, Washington

A6. Volcaniclastic sediments from snow/ice-capped volcanoes: Mount St. Helens and Mount Hood

A7. Eruptive history and magmatic system of Mount Hood, Oregon

A8. Introduction to Kīlauea and Mauna Loa volcanoes, Hawai`i

A9. Continental arc to rift volcanism of the Southern Rocky Mountains - Southern Rocky Mountain, Taos Plateau, and Jemez volcanic fields of southern Colorado and northern New Mexico

A10. Volcanism and its interaction with snow and ice at Mount Rainier
(Registration closes May 1)

A11. Quaternary volcanism on the Yellowstone Plateau

A12. Mount St. Helens---Recent and ancient volcaniclastic processes and deposits


B) Mid-Conference Field Trips

B1. Mount St. Helens

B2. Mount Hood

B3. Columbia River Gorge

B4. Portland as a City on Volcanoes


C) Post-Meeting Field Trips

C1. Stratigraphic evolution, eruption history, and structure of the Columbia River Flood-Basalt Province

C2. Mafic volcanism of the central Oregon Cascades

C3. A volcanic transect of the Pacific Northwest

C4. Monitoring the Yellowstone Caldera: Geologic history, geothermal activity, earthquakes, and ongoing unrest

C5. Volcanoes of the California Cascades

C6. Mount St. Helens: An overview of the eruptive history and petrology, tephra deposits, 1980 pyroclastic deposits, and the crater (Completely Filled; now closed)

C7. Columbia River flood basalts, associated rhyolites, and diverse post-plume volcanism in eastern Oregon