* 50 hikes reveal Colorado's geologic history and diversity * Trailside Geology section offers advice for practical study on the trail Erupting volcanoes, shifting seas, the icy embrace of giant glaciers, haunts of the dinosaurs: it's all here in Hiking Colorado's Geology. In 50 hikes, you'll see first-hand evidence of the most dramatic geologic events that created and continue to shape the terrain of this beautiful state. You'll benefit, too, from the authors' long experience as guides and lecturers, sharing their passion for the natural world. The guide is easy to use, with each hike headlined with the geologic features profiled. You'll also find an introductory section on geologic principles you'll see on the trail.