Have I found a deal for you! The historic McCulloch Gold Mill in Jamestown offers Gold and Gem panning, where you can find Gold, Gems, Emeralds, Rubies, Farnets, Amethyst, Crystals, and much more! Here's a coupon for FREE family admission! The Gold Mill is open to the public on Sundays from 11:00am-5:00pm through October. Buckets start at $10.00, and you can keep anything you find! How exciting is that?!
You can also visit the McCulloch Mineral and Technology Museum, and there is a picnic area.
Check out the Gold Mill's FAQ here for directions and more information.