* 50 hikes reveal Colorado's geologic history and diversity * Trailside Geology section offers advice for practical study on the trail Erupting volcanoes, shift

Explore the traces of the rise and fall of Colorado's mountains, volcanic eruptions, shifting seas, wind-blown deserts, and dinosaur haunts. This new destinatio

Hiking the Southwest's Geology: Four Corners Region takes curious hikers on a journey through time that explores the Colorado Plateau-an immense land of canyons

Combine hiking and geology interests to have more fun in on the trail

A guide to the Grand Canyon for rim walkers, day hikers, and serious backpackers, presented from the point of view of geologists. An overview introduces readers