Millions travel to Yosemite National Park each year to experience its groves of giant sequoia trees, waterfalls, valleys, and massive granite monoliths like El Capitan. Author Stephen Feinstein covers the geologic processes that shaped the Yosemite Valley, the area’s Ahwahneechee Indians, and John Muir’s critical role in working to preserve the area. Yosemite’s flora and fauna and current environmental issues are also featured, as are popular visitor activities like hiking, camping, and rock climbing.