Waterproof Rock ID guide for Lake Michigan

This 3x5 waterproof rock id guide is perfect for anyone looking for help identifying what you find as you travel the shores of Lake Michgan.  It is the companion to our New Lake Michigan Rock ID book.   With an added caribeaner to clip to your belt or rock bag.  Waterproof to keep it safe or from being destroyed by it falling in the water.  What a Great Gift for you or your favorite rockhound!