Described as 'unexpected help' in finding artifacts. Not quite true. Investigators routinely search animal burrow mounds, because they are free excavation. The

Described as 'unexpected help' in finding artifacts. Not quite true. Investigators routinely search animal burrow mounds, because they are free excavation. The context is crap and the original layer is lost, but it can be a way of vetting an area, see if there is anything worth looking for. There can be false negatives but not false positives.