Here are images from the Southwestern U.S. Field Trip.
| The visitor center at Canyon de Chelly in Arizona | |
| Crossbedding of De Chelly Sandstone | |
| Foliage lines the banks of the streambed | |
| Over 60 million years of non-deposition and erosion | |
| Valles Caldera in northwest New Mexico | |
| The following six images traverse from left to right inside the mouth of the crator | |
| These domes formed inside the caldera from high viscosity lava | |
| Centered in the far distance is the rim of the caldera | |
| More lava domes | |
| Moving closer to the right side | |
| Students listen as Dr. Cribb explains the structure of the Valles Caldera |