AdventureKEEN’s rocks & minerals products are proven sellers: more than 350,000 units sold Rock hunting is a growing hobby throughout the USA, and this is a great introduction to finding some of the most coveted types of treasures In-depth look at the region’s most sought-after targets, including agates, copper, gold, fossils, and more Simple guide that makes rock collecting easier and more productive: learn to locate hunting areas, find the rocks and minerals you want, and identify your finds Full-color photographs and range maps Need-to-know information about collecting rules, safety, and affordable gear that doesn’t break the bank Advice on lapidary arts, such as polishing, and on metal detecting Strong interest in rocks and minerals (e.g., many tourists visiting rock shops, significant sales of books relating to agates and other rocks & minerals) Author is an expert rock hunter with a lifetime of experience Covers Illinois, Iowa, Michigan, Minnesota, Missouri, South Dakota, and Wisconsin