This must-have guide for Michigan, Minnesota, Wisconsin, and Ontario features full-color photographs and information to help readers identify rocks and minerals. Get the perfect guide to rocks and minerals of the Lake Superior region! With the new edition of this famous guide by Bob Lynch and Dan R. Lynch, field identification is simple and informative. This book features comprehensive entries for 75 rocks and minerals, from common rocks to rare finds. That means you're more likely to identify what you've found. The authors know rocks and took their own full-color photographs to depict the detail needed for identification--no more guessing from line drawings. The entries are organized by area, so you can find rocks unique to each state or common to all three. The field guide's easy-to-use format helps you to quickly find what you need to know and where to look. Inside you'll find: 75 specimens of the Lake Superior region Quick Identification Guide: Identify rocks and minerals by color and common characteristics Range/occurrence maps to show where each specimen is commonly found Professional photos: Crisp, stunning images This second edition includes updated photographs, expanded information, and even more of the authors' expert insights. With this book in hand, identifying and collecting is fun and informative.