Arkansas Hosts the Planet’s Only Public Diamond Mine
In southwest Arkansas, the state government runs what might be the world’s most unusual diamond mine. For the price of a movie ticket, anyone can dig for diamonds at Crater of Diamonds State Park—and keep whatever they find. The 37-acre search field near Murfreesboro sits atop an ancient volcanic pipe that erupted roughly 100 million years ago. That eruption brought diamonds that formed deep within the Earth’s mantle to the surface, where they now wait in the soil for anyone with a garden trowe