These literary naturalists put the blossoming American frontiers—and the desire to protect them—on the map. Read about the early explorations of the West and the “forest reservations” that would become our national parks and John Muir’s legacy. Follow Mark Twain’s semiautobiographical stagecoach through the Wild West. And deepen your understanding of the transcendent connection between humans and nature with Thoreau. Packaged in a sturdy, illustrated slipcase, the set includes John Muir’s Wilderness Essays and Our National Parks, Mark Twain’s Roughing It, and Henry David Thoreau’s Natural History Essays.