Recreational and commercial sapphire mining is not only permitted in Montana, but it is a celebrated pastime and thriving local industry that has earned the state international renown. Montana sapphires are famous worldwide for their unique natural color palette and exceptional clarity. Enthusiasts and tourists can visit several famous commercial "fee-digging" mines—such as those located along Rock Creek, the Sapphire Mountains, and the Missouri River near Helena—where visitors can screen, wash, and pan gravel to keep any precious gemstones they discover, making it a popular tourism draw.