Associated Press
In this Aug. 7, 2012 photo, Randy Grebke of Kohnen Concrete Products, demonstrates how he  locates underground water by holding two copper wires while on a well drilling site in Huey, Ill. Many well drillers still witch or divine for water, Gebke included. Some, like Gebke, use small wires, others have a preference for a particular kind of wood. Many find themselves busier than they have been in years as drought grips much of the country. (AP Photo/Seth Perlman)

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