Ground penetrating radar (or GPR) is one of the geophysical techniques that archaeologists like Dr. David Leslie of Terrasearch Geophysical use to image or map archaeological sites without disturbing the ground itself. This is particularly useful to assess sites that are suspected of containing graves, or to better understand the boundaries or extent of known cemeteries. In this episode, Tanya talks to Dr. Leslie about his work and the scientific techniques he employs. For more information on Dr. Leslie and his work, visit his website: https://terrasearchgeo.com/