The hole began after an eastern coyote urinated in the center of the clearing and other mammals were apparently attracted to the odor and began to do the same. What was originally a depression merely an inch or so deep has now become a hole about 6-8 inches deep and more than a foot in diameter. The camera has occasionally captured photos or videos of active digging, every little bit has added up to a substantial pit.
How deep will it go? Only the future will tell.