Indian Marker Trees?

[Professor of Engineering]

IMHO: If you can detect the area...do it! Who knows what is under foot!

 

[releventchair]

Sounds like a tree that happened to fall on a land boundary. Surveyors would cut a "window" out so they could run a true line. They usually hammered in a small nail as a sight. Made figuring things easier.

It just had a section on one side removed to expose the hollow trunk.

 

[IMAUDIGGER]

It just had a section on one side removed to expose the hollow trunk.

Surveyors also do that when looking for scribing on old witness trees around section corners.