A layperson's geological road map describing rocks and landforms along South Dakota's highways, as well as the geology lying beneath in caves and mine shafts. Gries (geology, South Dakota School of Mines) keeps it simple but informative, traveling from the glaciated prairies, across the Missouri River, and into the rugged Badlands Wall, the Needles, and the Homestake gold mine in the the West. Stops along the way include geologic tours of the Black Hills, Mount Rushmore, Wind Cave National Park, and Jewel Cave National Monument. Includes maps and photographs. Annotation c. by Book News, Inc., Portland, Or.
