VANCOUVER, Wash. – The discovery of the remains of 215 children at the defunct Kamloops Indian Residential School in British Columbia last month has put a new focus on ground penetrating radar (GPR), the technology that was used to detect these unmarked graves.

Colin Grier, a Washington State University professor of anthropology, is the principal investigator for a National Science Foundation-funded effort to shed light on the capabilities of GPR to find and identify archaeological features, including graves, that are many decades or even centuries old. He hopes that ultimately his…

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