Book excerpt: * Other titles in the series are extremely popular * All necessary geologic terms are defined * Written at a level easy for readers to understand Arizona's geology is complex and its landscape varied. Yet, with Hiking Arizona's Geology as a companion, curious hikers with little or no background in geology can learn about Arizona's geologic features while enjoying some of the state's most scenic hiking trails. Fifty-five hikes organized by Arizona's three major geologic provinces are detailed, accompanied by information on the landscape encountered on each trail.