Canyon Deermice inhabit arid shrublands and grasslands in the inhospitable "slickrock" deserts of the West. In the canyons where they live, the common denominator is bare rock, and they are remarkably agile at scampering on vertical or even overhanging walls. Learn more about the Peromyscus crinitus, more commonly known as a Canyon Deermouse, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.