Book excerpt: Hiking Mojave National Preserve contains detailed information about 15 of the best day hikes in this California desert park, which offers awesome scenery, fascinating geology and archeaology, and the world's largest concentration of Joshua trees. Supplemented with GPS-compatible maps, mile-by-mile directional cues, rich narratives, and beautiful photographs, this is the only book available for trekking into the big empty space of the Mojave Desert.