All lovers of the mountains will welcome Verna Johnston's new and completely updated edition of her classic, Sierra Nevada, originally published in 1970. A professional biologist, veteran ornithologist, and well-known wildlife photographer, Johnston is the perfect guide for a natural-history trip into the Sierra. Regardless of how one explores the magnificent 400-mile-long mountain range, on foot or by car, in an armchair or a classroom, this is the book to have.

Beginning with the western foothills, Johnston evokes a vivid picture of the varied plant and animal life encountered as...