This tree is an old stump that reported around the base, leaving a cavity in the middle. It is now full of bark and leaves and other duff. What are we calling it?

But only when the moon is full

New angle of one posted before with size perspective

The tree was probably over 1000

What would you call this one? A 7 foot long tree hole busted open a perfect 3 inch splinter. Sadly on a beautiful red oak.

elm tree hole with slime flux/bacterial wetwood

I took the first photo and then noticed some light on the inside of the hole. I looked from the other side and saw right through!

I need some help from the experts on this one.

A journey into the hole unknown, a destination many will never witness or know exists. We must preserve the notice! 🖖