Ground-penetrating Radar Studies at the HAMMER Test Facility, Richland, Washington

The HAMMER geophysical test bed in Richland, Washington provides a facility to compare ground-penetrating radar (GPR) reflection images to known archaeological features in the ground. Simulated buried features including stone cairns and rings, burials, trash middens, artifacts and other materials were buried at depths from 12-36 inches in sandy ground and then re-buried with the…