Then they heard about an unusual sighting near Fort Polk, Louisiana. US Forest Service personnel, looking for debris after hearing loud sonic booms the previous day, had driven past several water-filled mudholes in the remote forest. At first glance, the holes were not particularly noteworthy. But then the searchers saw that mud was splattered forty-five feet high on the trunks of trees surrounding several of the holes. The holes were impact craters.
