Few places in the nation rival Yosemite National Park for vertigo-inducing cliffs, plunging waterfalls, and stunning panoramic views of granite peaks. Many of the features that visitors find most tantalizing about Yosemite have unique and compelling geologic storiestales that continue to unfold today in vivid, often destructive ways. While visiting these more than twenty-seven amazing sites, you'll discover why many of Yosemite's domes shed rock shells like onion layers, what happens when a volcano erupts under a glacial lake, and why rocks seem to be almost continually tumbling from the region's cliffs. With a multitude of colorful photos and illustrations, and prose tooled for the lay reader, Geology Underfoot in Yosemite National Park will help you read the landscape the way a geologist does.