Earthworks, Bolivar Height, trenches, discovered during Scottish Castle demolitionHarpers Ferry National Historical ParkEarthworks -Bolivar Height, Trenches, discovered when Scottish Castle, was being demolished. Original caption: HFNM NHF-2202 BOLIVAR HEIGHTS EARTH WORKS-BOLIVAR HEIGHTS TRENCHES DISCOVERED WHEN SCOTTISH CASTLE WAS BEING DEMOLISHED, FEB & MAR 1963 CLYDE B. KING - MGMT ASS'T.