Understanding the process and technology of detecting unmarked graves has become a focus following the shocking announcement by the Tk'emlúps te Secwépemc First Nation last week. That determination was made by a specialist who used ground-penetrating radar (GPR), a geophysical survey method to examine the site. But it also can be used to scan historic cemeteries and unmarked graves. In terms of technology, survey teams will use ground-penetrating radar devices to roll across the surface of the earth. Archeologists Kisha Supernant, right, and Terence Clark use ground-penetrating radar to search for unmarked graves.

Source: CBC News June 05, 2021 08:00 UTC