Did anyone else wonder about that pit? It looked pretty new, not like something that would have been dug a couple (or a few) years ago. If it was a sinkhole, wouldn't the floor of the pit be a mess of rubble?

The walls seemed to have recently-cut, sharp angles like those created with a backhoe or excavator. The roots looked recently cut; I didn't see as much growth or dead roots from growth after the hole was dug as I would expect after a couple years. Who has been running equipment like that recently, and where is it now?

There was no accumulation of debris, dead leaves, etc in the bottom. Also, I didn't see the remains of any small animals that might have fallen in over time, let alone walkers.

It just looked and felt like a new-ish hole and I'm surprised I haven't seen any comment here and nothing was mentioned on The Talking Dead.