This book, provides an introduction to Colorado's mining history through photographs from the nineteenth and early twentieth centuries. Accompanying captions provide specific contexts for the photos and tell the story of the prospectors, miners, engineers, teamsters, railroaders, and townspeople who served as entrepreneurs and workers in industrializing the Colorado Rocky Mountains. Many ruins from the mining days are now recognized as historic landmarks. But the stories behind the ruins are often as fascinating as the ruins themselves—the struggle to survive and thrive in the wilderness is always a compelling tale.