Keystone is a one-of-a-kind shopping experience. You’ll meet candy-makers, chain saw artists, rockhounds, fine art aficionados, gold miners, wild game chefs, t-shirt designers, cowboy comedians and other interesting characters. Their life’s work is to welcome the never-ending parade of pilgrims to the Shrine of Democracy from late spring to autumn. In winter, some take a break — but fortunately not the candy-makers.