Southwestern South Dakota is home to a rich variety of rocks, minerals, and fossils—most famously the colorful and highly sought-after Fairburn Agate. This practical field guide is designed to help rockhounds of all experience levels identify the specimens they find throughout the region.

Packed with photographs and personal insights, this book covers not only Fairburn Agates but also Prairie Agates, Jasper, Quartz, Petrified Wood, and other common and uncommon finds. It explains key identifying features, variations, and formation details in a simple, accessible format.

Whether you're new to rock collecting or a seasoned hunter looking to expand your knowledge of the area's geology, this book is a reliable, go-to resource for exploring the unique and beautiful stones of southwestern South Dakota.