The Historical Society of Watertown presents:
Robert Perry, Certified Ground Penetrating Radar Specialist. TOPOGRAPHIX® LLC
Mr. Perry is a certified ground penetrating radar specialist. His presentation will explain how the system works and give examples of his discoveries. For example, Using ground-penetrating radar, Mr. Perry was able to identify burials in Sudbury’s oldest cemetery that have been forgotten for centuries. He located 967 grave sites including 70 buried headstones.