This is an exploration of the natural arches and pillars of Ohio. The heart of the book is the identification, description, and interpretation of some 83 arches and 18 pillars known to occur in the state. Background information about the bedrock geology of Ohio, the methods of measuring and describing natural arches and pillars, the processes by which these features can be formed, and the ways that they are eventually removed from the landscape provide interesting and valuable context for better understanding the creation, destruction, and study of these unusual elements of the geological landscape. The names and locations of publicly accessible arches and pillars are given. This is the most extensive statewide review of natural arches and pillars known, and it will almost certainly become a model that will inspire and influence similar compilations for other states.