This new edition of Donald L. Baars's classic The Colorado Plateau incorporates new text, maps, photographs, figures, tables, and bibliography to provide the most up-to-date geology of the red rock and canyon country of the Four Corners of Utah, Colorado, New Mexico, and Arizona. Baars's comprehensive geological summary of the canyonlands is detailed enough to satisfy a geologist looking for an overview of the region yet clearly enough written to appeal to anyone interested in learning the scientific story behind this magnificent scenic area.