Sandstone, shale, dolomite, limestone, coal, quartz pebble conglomerate - our forest is built upon rock. The stack of 300 million year-old stone ramps from valley floor to the gates of campus. Like the towers and walls of Sewanee, the rock bluffs that surround our home on the Plateau show age and change. Tree fossils run between old slanting sand ripples from rivers long gone. The vast network of expanding caves beneath our feet always offer a chance for further exploration. Our students are not just told about the geologic processes that shape the planet - they are shown the details in the field.