Bøger af John Paul Gries

Written for the layperson and amply illustrated with photographs, maps, and diagrams, this book describes and interprets the rocks and landforms visible along the state's highways and the geology that lies hidden beneath prairie sod and in caves and mine shafts. Included are geologic tours of the Black Hills, Mount Rushmore National Memorial, Badlands National Park, Wind Cave National Park, Jewel Cave National Monument, and many other points of interest.