1. Maps showing uranium prospects and mineralization in the Lost Cove and Harper Creek roadless areas, Avery and Caldwell counties, North Carolina Yale Public content 1986. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. North Carolina, Avery County, and Caldwell County.