A Field Guide to Geology: Eastern North America »

Roger Tory Peterson, one of the world's greatest naturalists, received every major award for ornithology, natural science, and conservation as well as numerous honorary degrees, medals, and citations, including the Presidential Medal of Freedom. The Peterson Identification System has been called the greatest invention since binoculars. These editions include updated material by Michael O'Brien, Paul Lehman, Bill Thompson III, Michael DiGiorgio, Larry Rosche, and Jeffrey A. Gordon.

With more than 130 color photographs and 170 drawings, this book shows how to read geological history: plate movements, earthquakes, glaciers, rivers, seas, and other forces that have shaped the earth over millions of years. Each geological region of eastern North America is described vividly and illustrated with detailed maps and cross sections. Highway tours tell where to go to find the best examples of each kind of formation.