Rockhounding & Prospecting: Upper Midwest: How to Find Gold, Copper, Agates, Thomsonite & Other Favorites

Find success on your rock hunts for popular gems and minerals by selecting the best locations to look for them. Agates, copper, gold—you want to find them! But if you’re searching without a plan, the odds are stacked against you. Whether you’re new to rock hunting or already hold an interest, prospecting is the way to maximize your success. T...