Whether you are a tourist with a casual interest in old mine sites or a serious mining historian wanting to know more about mining methods, you will find Riches to Rust to be fascinating reading. Eric Twitty's new book can be used as a field guide for exploring the many old mine sites across the West and understanding the relics strewn around an abandoned mine, or it can be useful in understanding the processes involved in mining in the nineteenth century in the United States. It includes chapters on mine development and organization as well as details on prospecting, mining, milling and transporting the ore.